Yes, if you started with the assumption that all Yankees members got JnJ and they were all exposed to the same infected person(s) then the fact 8 players became infected would actually be a little better than expected. Obviously it’s never that clear cut though.
Your previous post outlined what we don't know about breakthrough cases and specifically not knowing what's going on with the Yankees. The fact of the matter is that we still don't know hardly anything about breakthrough cases and even less about what's going on with the Yankees. It's not 8 players by the way, it's a mix of players and staff..
It very well may turn out to be not a big deal, but as of now a close cluster of 8 vaccinated people testing positive, some of them are symptomatic by the way, is troubling. You certainly can shrug it off, but if we're playing the game of "trust the science" you should be have an eye open to this because the science hasn't given us a reason to be dismissive.