Yep it always happens, as I questioned it a month or so ago, and was proven wrong. There's been times where articles came out and were pulled, but not the other way round.
Nothing on Dev centre, and nothing on twitter, which there usually is by now.
I suspect nothing this week for iOS 14. So maybe something next week. Either something was very wrong with iOS 14 B7 and it was pulled, or they're happy with B6, meaning it will become the GM. Either of those explains WatchOS B7 coming out separate.
I agree with the watchOS B7 coming out separate as a possible sign that iOS 14 B7 may have been pulled or delayed. Beta 6 will not become the GM. I think that the GM will not be til end of September. But what is even more weird is fact that macOS Big Sur hasn't seen a beta update in a while. It's been 2 weeks now.