Well, until these things are self hosted (and even then); running these things involves a massive amount of trust with the providers. Like, to make it even useful you more or less have to turn over all your data (IP, slack/teams conversations, internal documentation, etc.). So you kind of want to know that whoever you're giving that to isn't going to stab you in the back. (Um, also see Anthropic going after Figma's business; or Microsoft's entire history of embrace/extend/extinguish.) It's really naive to trust these companies, and it's VERY naive to trust Elon Musk.