The way it sounds right now is "AI generated faces don't have all these artifacts 99% of the time" (I'm paraphrasing A LOT, but you get what I mean.)
The only way it sounds like that is if you don't read the article at all and draw all your conclusions from just reading the title.
Don't get me wrong, I'm sure many do just that, but that's not the fault of the study. They clearly state their method for selecting (or "cherry picking") images
Finally we can join Grace in enjoying a MeBurger