rage had a limited form of strafejumping, with a low max UPS. and nowhere to use it, as most action took place in tight enclosed spaces.
the guns weren't great and the story was bland.
also, without a hack (which you can find with 30 sec of googling) you would get texture popping. a youtuber managed to fix them, but id could not. SERIOUSLY.
my guess..
both that id is a small team, and that they don't have good leadership.
although i am looking forward to doom 4, i doubt id will ever be able to put out another game as great as doom2 or quake 3.