Plenty of humans glitch out on random words (and concepts) we just can't get right.

Famously the way R/L sound the same to many asians (and equivalently but less famously the way that "four" and "stone" and "lion" when translated into Chinese sound almost indistinguishable to native English speakers).

But there's also plenty of people who act like they think "Democrat" is a synonym for "Communist", or that "Wicca" and "atheism" are both synonyms for "devil worship".

What makes the AI different here is that we can perfectly inspect the inside of their (frozen and unchanging) minds, which we can't do with humans (even if we literally freeze them, we don't know how).