Your point about LLMs aside, I'd trust the inside source over whatever carefully baked misrepresentation the PR department doles out.

Unfortunately that inside source is often coached by the PR department and are just there to say things they can't get away with saying publicly or don't want to have their exact words on record. I.e. just as much a misrepresentation as the official press releases. Or sometimes even more of a misrepresentation since nobody can actually be held accountable for their words.