The bar isn't any higher. There's just no grace given. No one is judging a hobby project made by a human on quality, and the person who the hobby project belongs to will rarely say that their code is high quality. And in a professional setting, I think people are fine with "good enough" but they're not going to claim anything is high-quality.

But people are so quick to label their vibe-coded codebase as high quality and no grace is going to be given to a machine.

What comments are you seeing that are calling code from humans high-quality?