I've been playing dwarf fortress on and off since version 23...something? I don't remember at this point anymore since it's been a while, but I have seen nothing but varied improvements since (and bugs which have mostly been fixed!
). In fact, I haven't had a fort downfall due to a stress spiral in a
really long time..since v0.34? Within the more recent versions, I have never had a fortress end or become unenjoyable to play because of "game ending stress" Maybe I cater to my dwarfs needs earlier on than the average player? Hard to say.
I believe the game was made to be more difficult over the years with more surprises - and there is nothing wrong with that. Just taking a look at something along the lines of nethack, which is quite difficult to beat, I think dwarf fortress was designed in the spirit of a roguelike's difficulty at it's heart. I don't think there's anything wrong with dwarves being "too sensitive" nor do I think the psychological development in game, is flawed. Now, could it be tweaked here and there? Even further developed perhaps? Yeah sure, maybe.
There's nothing wrong with listening to your community when developing a game, as that is somewhat important - but don't let the popular consensus drive away features and changes you want to implement. Sometimes, communities latch on to a concept and never let it go. ¯\_(ツ)_/¯