I guess it wouldn't bother me so much if the game wasn't constantly prodding you to take the non-lethal option early on. Paul explicitly tells you to stick with the prod and not to kill anyone and you have at least two characters tell you not to kill the terrorist leader. I get that it's an RPG and it's entirely up to the player, but the game makes it clear that going nonlethal is the most rewarding option, so why wouldn't I take that option? Except when I try it, the game's stealth just feels undercooked in general. Deus Ex is practically begging to be played like a stealth game, but the actual stealth is frustrating as hell. I get what the game is trying to do by making the non-lethal route harder, but vanilla Deus Ex just feels straight up unfair sometimes, and it's a big reason I never made much progress.