With one of the last patches/fixes a bad thing slipped into the game. We now have critical fail on skill checks. We even have a tooltip that says it's there. It shouldn't be there. Not only because it's wrong by D&D rules, but also because it ruins the roleplay.
Imagine, I'm playing a wizard, who studied arcane magic for years, he has the proficiency and now he fails an arcane check with a difficulty challenge of 5 points just because he rolled 1 and his 5 points of well earned knowledge are not taken into account. This is madness! In examples from the real world it is the same if a programmer suddenly wouldn't be able to tell you what a compiler is. He may not be a super cool professional but he still should have some basic knowledge. If it's not a basic knowledge then the difficulty shouldn't be just 5.
Critical miss is there to represent things that are totally out of your control in a fight even if you were fencing and throwing offensive spells for centuries. You may slip, you may get distracted, your opponent can get lucky in his attempt to avoid your attack. They are also balanced by critical hits.
Critical failure on stabilization rolls is there to represent the struggle against death as not something that you can learn to do. And this is also balanced by critical success.
But skills… they are your knowledge, your training, which you're using in a quite controllable environment. If you don't remember something from your studies, you can just spend some time trying to remember. And the roll against higher difficulty is an extrapolation attempt, not an attempt to do something random to get a random result. And there is no mechanic for critical success.
Larian, please, fix it.