If you don’t realize that a good many of us will get stopped cold by such huge difficulty spikes, then you don’t really understand the frustration. I’ve moved on after many demoralizing attempts at one particular boss and its too-long preceding gauntlet. (If I could at least save right before the big fight, then maybe I would have eventually prevailed.)
I didn’t know there was a way to cheat your way past these joy blockers. Invincibility mod? I need to check that out. If it can be toggled on and off at will (used only when essential), it may be just the ticket to get me back into the game.