While i certainly do not like failure i have nothing against failing on a nat 1 and succeeding on a nat 20.
Never forget that even pros make mistakes and even the most unskilled person can have a lucky strike. It's the feeling that, against all odds, you still have a small chance. OR the risk, that no matter how good you are, you can still make a mistake or have bad luck (faulty lockpick or somesuch)
That's why crits remained on attacks. But was removed from skill checks.
Most of a time by the rules nothing really stops you retying on the same skill checks. With with simplified "critical success" every player would just keep brutefocing every skill check, until they succeed.