"she saw a good enough sign "
The additional thing is that it... isn't a bad sign. I have seen a ton of terrible AI-slop food signage. This sign does not try to be "hyper-realistic", and end up in an uncanny-valley, or look like fake food. It's not fully of spelling mistakes and things disobeying the laws of physics.
Does it have maybe too much information shoved on it? Sure. Does it use a font that is definitely "AI-popular". Ya.
But there are tens of thousands of worse examples of AI menu usage out there. It seems people decided to pick on this one because it's not horribly done. A local artist looked at it and, instead of thinking "wow that looks soo fake", they thought "that's basically the same thing I would have delivered, and 99% of people wouldn't have been able to tell the difference! I should have been paid for that!"
Reference: the sign in question: https://www.instagram.com/p/DdBgsgnNDaC/