It all comes down to what exactly is being taught.
Yes, it does, no argument here!
It is one thing to teach people how to recognize and understand emotions better, so we are not manipulated. It's quite another to encourage specific types of emotional behavior. People who are not naturally attuned to emotions would do well to learn the first, but should not be pushed into the second.
The more I deal with people outside my very limited social bubble the more it becomes clear to me that the majority of people don't have an even rudimentary "theory of mind" concerning other people (
http://en.wikipedia.org/wiki/Theory_of_mind). This is completely unacceptable.
This mostly comes down to attributing to other people either the motivation one has oneself (I want to be friends with this person, therefore they must want to be friends with me, for example), or some really simplistic stereotypical motivations attributed to a group the person belongs to (for example: she is wearing that skirt to get attention, because that's what women want, sexual attention from men). This is, as far as I can see, a constant source of interpersonal problems and personal frustration to EVERYBODY, ALL THE TIME.
Also, there's the distinct, but somewhat related issue of Fundamental Attribution Error (
http://en.wikipedia.org/wiki/Fundamental_attribution_error). It seems this is a bias that comes naturally to people, and is responsible for a lot of frustration and conflict.
Coincidentally, if you are even somewhat interested in psychology, you will probably have heard of Cognitive Behavioral Therapy (CBT), and how it seems to be a very effective intervention for most people with an enormous variety of problems. Well, if you look into the techniques of CBT, you will see that it is an attempt to teach individuals to enhance their theory of mind and to avoid Fundamental Attribution Error.
Interestingly enough, both of the issues I just brought up have very little to do with being "attuned to emotions", and is mostly about rational, cognitive models: what you understand about how you and other people think and feel, rather than being "sensitive", or going as far as exhibiting any specific emotional behavior.
Now, as far as "specific emotional behavior" thing goes, there's a bit of a caveat. I'm sure you've heard of anger management, right? I'm not going to say that everyone needs it, or even that those courses incorporate effective techniques that aren't bullshit... But I would argue that if people expect to benefit from living in a civilized society, they should also expect to comply with some basic expectations that they effectively manage their emotions, and don't allow those emotions to create problems for people around them. So, yes, some types of emotional behavior should be (and generally are already) taught. That doesn't mean micromanaging how people are allowed to feel (which would be a terrible, repressive thing to institute and would make everyone miserable).
I would prefer to be my genuine self with these people, rather than go through life creating false impressions for those I care most about.
You are making the assumption that an improvement in emotional intelligence means you'll have to fake your way through life. This is not the case. In fact, there's a lot of research that points to the fact that people are happiest when they are allowed to be genuine and to engage in self-affirming behaviors.
To begin with, if your theory of mind is robust and you eschew fundamental attribution error, your genuine emotions about a situation will be different. Someone cut you off in traffic? Well, maybe they aren't just an asshole fucking with you, maybe they are in a rush to pick up their kid from daycare, will be fined for getting there late, and are so stressed out about it they didn't even see you. And you can probably remember a time when you did the same thing for similarly understandable reasons. Suddenly, rather than getting angry, you realize you aren't in that big a rush yourself, shrug and turn the music on. Are you not being genuine when your reactions are altered in this way? No, you just "genuinely" react differently.
What about when you get home and your kid hasn't done their homework, and you see their report card and there's a "D" on it. One "genuine" reaction would be to remember that time they spent all evening playing Halo and scream at them and shame them for being lazy and threaten to take away their video games. Another, equally "genuine" reaction would be to question them (in a non-confrontational) about why they are procrastinating: you might learn that they are struggling with a subject and are feeling particularly anxious (and extra tutoring would help), or that they've been feeling really low and use video games to escape their mood problems (and a visit to a doctor/therapist would be in order), or that they are having some interpersonal conflicts in that class and are too overwhelmed to focus on the work (and a parent-teacher conference might help). Both are genuine reactions, but one might be more effective in solving the problem (your child's poor performance at school) and make your home life less fraught with conflict.
I'm not advocating that you should go through life swallowing insults and pasting on a fake smile. I'm suggesting your life (and the lives of everyone you come in contact with) would be better if you had a better understanding of what's actually going on with the people around you (and, just as importantly, knew the limits of your knowledge in this respect), rather than acting on misguided and mistaken assumptions. AND, most importantly, the solutions I'm proposing have a whole lot more to do with REASONING than with FEELING, and are quite objective and evidence-based in their underlying assumptions and application.