Oh, I expected the events, too. And yes, no guests, but I would think the CMs operating the rides and interacting with the players during the after-hours events likely won't be in their own bubble outside of these events, so that seems like a risk I would think the NBA higher ups wouldn't want to take. Much smaller chance of contamination than being in with guests and CMs, though, absolutely.
I just understood the bubble to be fully exclusionary, I guess, so any non-NBA player (or staffer or authorized personnel or family) coming in contact with the players at all seems like something they weren't wanting before. Definite possibility that I misunderstood the concept of the bubble, though.