Meh, if you gauge FreeCAD development mindset off of the forums you are misleading yourself. That was certainly the case 3 or 4 years ago, but it would seem that the core contributors have mostly moved away from the forum as a platform due to the very toxic mentality you mention. GitHub is the most concrete view into things, and a lot of free-flowing discussion happens on Discord.

The mindset against usability improvements that was prevalent back then has largely shifted. The hard part is the complexity of the program makes a single sweeping overhaul incredibly unlikely so incremental jumps and improvements will probably continue. Seems to me like things are headed in a pretty healthy direction when comparing the last few versions.