Also, it's pretty easy at this point to setup an AI support agent that can reference your docs, and it is a helpful exercise for organizing your own thoughts and being able to communicate them back to yourself. There's not really a good reason to not have good docs.
I just assume that if a product is gated behind "let's hope on a call!" it's still vaporware and there's a 50/50 chance that they'll pivot within a few months.