Disagree. People misuse stuff constantly.

Woah wait now. Sure people misuse things but designing with that in mind always produces a better thing than ignoring reality. A gun with a safety is a objectively a better design than a gun with no safety, even if the both have a manual that says not to play with the trigger and keep away from kids.

on them for just not reading the rules

The game trains you to expect a dopamine reward when you roll a 20. A game that consistently meets the expectations it creates would be a better game.