Does that mean that people do not recognize that some of the content is AI? Or do they simply accept it?

A little bit of real content goes a long way toward getting people to pay for something unknown, which then turns out to be AI-generated. Even if they are not satisfied, that counts as AI content making a sale.

https://en.wikipedia.org/wiki/Pig_in_a_poke

There's enough people on both camps I'm sure.