I don't really know anatomy but I'm exposed to anatomy through dance and body work a fair amount. It's not just the fingers but any part of the bodies that AI draws that look wrong to me - if I look carefully.
I don't think you necessarily need to be an expert to see the multiple wrongnesses of AI images. It's just that AI images don't signal people to look more closely. (and a lot of popular illustration has bad anatomy and people excuse that).
And broadly, I think the division between experts and non-experts in the "telling things are wrong" department is over-emphasized by focus-example chosen in the article. The production of pop-songs, for example, is an area where an expert can make a song more appealing to the average person (objectively verifiable: they create top-ten hits). So the average person can tell a song is well/badly produced when they aren't an expert who can produce songs.
You can't learn to be a good figure artist by looking at flat images, you have to study anatomy, look at skeletons, learn the names of major and minor muscles and otherwise know what's inside. 3-d animated characters in games are good because this knowledge is baked into them.
I don't think you necessarily need to be an expert to see the multiple wrongnesses of AI images. It's just that AI images don't signal people to look more closely. (and a lot of popular illustration has bad anatomy and people excuse that).
And broadly, I think the division between experts and non-experts in the "telling things are wrong" department is over-emphasized by focus-example chosen in the article. The production of pop-songs, for example, is an area where an expert can make a song more appealing to the average person (objectively verifiable: they create top-ten hits). So the average person can tell a song is well/badly produced when they aren't an expert who can produce songs.