I can't disagree more. A lot of shops in our city have done this and I actually miss the shitty photoshopped images that did not even look like the real life dish anyway. AI signs are way worse.
If it doesn't look like the food you're about to purchase, yes? Why is this even a question in this context.
That's not a function of improvement in models, though, which was the question. You could literally do that today, no need to wait for models in "2-3 years".
(Have also heard about people - not just scammers/spam operations - using generated pictures and descriptions for dating profiles and real estate ads, and I cannot understand what outcome they expect when someone follows up and immediately realizes what's up)