ACC was only ever going to consider us if FSU+ leaves the conference. I don't see their potential addition of Stanford and Cal as necessarily harming USF's potential inclusion in the near or long-term. Our key trigger is FSU+ leaving, which is still very much in play. All that said, it could be that these "exploratory" talks are being done more out of courtesy (given Stanford and Cal's academic reputations and the importance of academics to certain ACC schools) than out of serious consideration. Not sure this really makes sense for the ACC at the end of the day. But this way, the ACC's presidents can say, "hey, we considered it, but it's just not going to work." I'd still be shocked if the ACC adds Stanford and Cal.
Does look grim for OSU and WSU though. Unlikely AAC would cast that far west without Stanford and Cal being a part of the deal.