Bill Zebub
“It’s probably Matt Mercer’s fault.”
It seems to me that sometimes, by control, you mean something like being free to declare actions for my PC (eg "in control of what my PC does, how they act". And I agree that getting temp hp doesn't affect that.
But I don't see how it doesn't affect what your PC thinks and feels. If nothing about your PC's mental state has changed, where do the temp hp come from?
For the record, even though Inspirational Leader doesn't impel or limit any action declarations, I still see that feat as philosophically problematic. Sure, when somebody uses it I take the temp HP and keep my mouth shut, but I'm also thinking that I don't like the implication that my character automatically finds this other character inspiring. I'd much rather it be along the lines of, say, a song, and any character who joins in the song gets the benefit. That way I'm making a decision for my character.
I never take that particular feat, even when it might otherwise make sense for my character.