If “be ok” means being comfortable with not having the income to them from people paying them to write that stuff, then no, I don’t think the artist cares wheth

If “be ok” means being comfortable with not having the income to them from people paying them to write that stuff, then no, I don’t think the artist cares whether the AI pirated or paid the $500 to buy all 50 of their books (or whatever). If “be ok” means that legally they are limited because someone bought their book and chose to use it by feeding into a training algorithm, then yes. If I steal a book from your house, it doesn’t matter if I stole to read myself or to feed into an algorithm. But if I buy a book, or borrow it from a library, then it’s legal for me to have a computer scan it and feed into a training program. I just can’t distribute copies or otherwise infringe on the copyright.