So, a confession: I used to think that the achievement was the reward for defeating the Chamber of Souls in the Steps of Torment. I completely missed the chest.
i think the main issue is they get covered in corpses and potentially lingering FX
it’s extra noticeable in Ancient Grove and Tomb of the Heretic where there are large monster models, easily towering over the chest when laying dead - even if i know the chest is there it can actually be hard just to click it
i can imagine people that aren’t aware of the chest being there/being actually openable after the fight might have a harder time realizing/remembering “oh, yea, there was a chest in here right?”
I missed that same chest and a few others when I first started playing. I love the ones like that in mist/magic glow, it fits in with the story very well, and I can kind of blame myself for missing them. That said, anytime any accessibility options can be added to a game, I’m all in 100%!