[TheOtherHobbes]

Humans are rarely aware of optical illusions unless they're extreme images they don't see in real life - crawling dots, impossible geometry - or they're explicitly labelled as optical illusions.

Some more subtle examples:

http://www.terrycolon.com/1features/optical-illusions.html

In fact human perceptual processes are only kind of reliable some of the time. Low and/or unusual light, suggestibility, and unusual contexts all have a very negative effect on reliability, but humans are often unaware of this.

Cognitive and semantic illusions are even more persistent. People literally believe all kinds of nonsense, and will carry on believing it even when offered robust evidence that they're wrong.

The point being that human perception and cognition are not some kind of gold standard. They have plenty of issues of their own. But there's a kind of assumption/requirement of perfection with machine intelligence that doesn't apply to human cognition. So bugs in our own evolutionary firmware tend to be overlooked, while equivalent-level bugs in ML are seen as terrible failures which undermine the entire premise of AI.