This appears to be a commonality across software companies as Microsoft appear to do the same thing.

Is it that the marketing is bad or is there some weird reason that this all makes sense?

If I had to guess, it’s an ownership issue. There’s an enterprise team, a consumer team, a cloud team, etc. so there’s no single vision and plan. Which could be okay, but then each of those teams likely has not been given the authority to develop their own branding or naming and just defaults to using whatever is available, pre-canned.