Perhaps. At least we can agree that Fi sensitivity is definitely not readily noticeable.Fi sensitivity usually comes in the form of actions rather than expressing sentiments. It's likely that you've just overlooked it.
It seems your perceptions of Fe are as objective as my perceptions of Fi.And it may have something to do with the initial meeting of Fe to Fi -- Fi-types feel that their personal space is being violated and Fe-types get angry when Fi-types don't submit to the niceties of the human version of butt-sniffing. They end up seeing each other and immediately not getting along, which then colors all interaction afterwards.
But your explanation just collaborates what I am saying. Fi users only care about their own personal sensitivity. Do Fi users really not see any benefit in using tact or being respectful towards the differences of others? I guess the fact that you called it "the human version of butt sniffing" answers that question.