Isn't the usual and correct reply is to say ... git gud?
+1
Never got ambushed and walked through the final fight in my first play through. I 'scouted', used my camera and map. And never walked down any dark alleys with raised platforms on both sides (please, this screams ambush in ANY game) And I didn't power game or reload.
The only time I can support these types of pitiful cries is when it's an obscure trap or a puzzle that instagibs. D:OS before EE particularly had a couple of these and it was pretty jarring when encountered.
Unless they put dead bodies and or ash piles around where that magic lava is going to suddenly appear, it shouldn't be there.