Autism affects how senses are processed, and taste is a sense - some autistic people don’t want things that are strong or that vary a lot, preferring consistency instead.

With that being said, it’s not a universal thing, different people are affected differently.

I think people do think it should fail. Snap isn’t bad, but when people run a command, they expect it to do as asked, or fail. The fact it does something else breaks that intuition, as it’s doing what it thinks you will want instead.

With that being said, it’s not a big deal.

Anecdotal, but I have had bad experiences using Ubuntu. I know it’s not a bad distro, and that it contributes a lot (especially historically), but it’s the other distros that take their contributions and add to it that I find worth using or recommending, or sometimes an unrelated distro. It’s the sort of thing I might give money to, but I’ll never want to use directly.

I think this is what people mean when they say it’s bad - that distros that take what Ubuntu made and add their own touch seem more user friendly.