+1
Skill checks already have an element of frustration where a new character who is as specialized as can be in a certain field (+3 ability modifier and +2 proficiency) will fail a Medium (DC15) skill check about half the time. Introducing critical fails only adds to the frustration and makes characters look even more incompetent. This isn't Disco Elysium either, there aren't any particularly interesting outcomes for failing checks (that I've seen, anyway).
