I think that's totally possible, but I also think it's equally likely that people become better and better at recognizing it. I remember when I was a kid what now looks like terrible CGI in movies was quite believable. People are really good at recognizing patterns, and especially for any kids growing up with AI they're going to get a lot of exposure to it and likely become very good at spotting it. For all anyone knows it may just become inbred too if they can't find a way to weed out AI from the training.
I'm not saying the hype the ai industry is pushing about only improving from here couldn't happen, but it's hardly a foregone conclusion from what I've seen so far.
I'm not enough of an expert to explain it better, but I remember reading about a guy who came on board with google, and took over search. He had an initiative to keep people on google longer. That's my memory of it at least.