Satine, I think I can identify with what you're saying about Fe/Ti. Yes, there are many times when for me, digging around in an emotion will not help at all, and if someone is trying to help me go deeper and root around in the emotion itself, rather than helping me reach a perspective that makes that emotion go away through reframing or action, I want to swat them away. I feel like it's just prolonging the issue, rather than getting through it. Conversely, when I see someone spending so much time wrangling with the emotion and how they got there and what it means, I often am looking at the bigger picture and how it will affect their lives and others, because to me, once you've figured out that you don't have to give a lot of credence to the feeling, why wallow in it? (I know that's not an Fi perspective, and is probably nails on a chalkboard to y'all.) This is why therapy can really help me when I get in a depressive Ti loop. It helps me if someone can give me that big picture perspective and show me where my feelings went off track. Y'all trust your feelings to guide you, but mine are often errant, and are sometimes born of unrealistic fears. So of course, we're going to think everyone thinks like we do, and "helpfully" give our perspective (and vice versa). I can think back to minor clashes I've had with people about stuff like this and recognize now it's because they were Fi dom/aux. I didn't realize it or know anything about Fi then. It definitely would have helped me understand them better.
I can't think of a time when I thought an Fi user was using their feelings as a powerplay...can you think of an example when you or someone you know were accused of that? I do know sometimes I've thought people were hanging on to feelings when they could do something to change the situation causing the feelings, because they enjoyed the attention and sympathy they were getting from others. I don't think that's the same thing, though, and I can't say whether they were Fi or Fe users.