"Normal" doesn't mean good, so that line of argument doesn't work for me. But the specific "stink" I'm objecting to here is, as I said, a conflict of interest.

"Normal" doesn't mean good, so that line of argument doesn't work for me. But the specific "stink" I'm objecting to here is, as I said, a conflict of interest. In specific, saying, "If you've ever wanted to get into language models, this is a good place to start" purports to be neutral and helpful. When instead, this person is promoting a product. Maybe using a (to my eyes expensive) commercial service is the truly the best place to start learning that. Maybe this is truly the best service to learn it with. But we can't expect a fair answer to those questions from a person whose works at the company and whose apparent job is promoting the product that pays their salary.