The problem with this argument is that first off, the GM can’t know your character sheet front-to-back because they’re not playing your character, so they probably don’t know if even a 1 will pass the DC they’ve set.

The GM should know exceptional stats of their player. Yes, I might not know some rarely relevant stat of my players, I but surely know how well the rogue stealths, how well the elf bowman arches, how well the mage spells and how hard the barbarian hits.

And even if I don't, the players can tell me the stat before a potential check.