As someone who knows a lot of people who have done various types of sex work, and having done some myself, that's simply not always true. I think people seek out and find the type of interactions that work for them. Some people are easily amused. Maybe most! But a wide range of interactions are available for people who want them and look for them.

Even on the high end, most workers would be happy to actually get to know a client - if the client isn't totally off-putting and is willing pay $100/hr for Skype! But if a client wants canned responses, they'll get canned responses. And maybe AI is actually an improvement for those types of clients if they can retain some plausible deniability.