The updated title IX guidance was supposed to come out in April, then was kicked back to May, and now was kicked back to the end of June. I don't believe they'd be able to get away with selective gender ID (bathrooms, pronouning) without also including sports (deeply, deeply unpopular). They'd have the ACLU on one side trying to rip down their new rule, and the ADF/Heritage foundation/several states on the other. Rewriting the Devos rules are simple and straightforward. I doubt that's what is holding them back.
Nevermind Title IX incrementalism (the courts deferring to the executive, which defers to the court rulings it likes) that's so dramatically expanded the law will not be popular with the current supreme court. The executive clearly hasn't been following the letter of the law - orders require a presidential signature - they've just been updating their "interpretation" of previous orders in radical new ways so the president doesn't have to be directly involved.
Mostly the Biden administration has issued strong statements in support, while refusing to comment on the specifics or implications of those statements. My belief is they were hoping for a court case they could defer to in an ah shucks, we know this is unpopular, but what can you do
The midterms are already shaping up to be slaughter. Roe V. Wade being overturned isn't the lifeline people think it is. It has no practical impact in states the democrats can gerrymander. It's unkown how much it can upset republican gerrymandering (doubtful much). Putting dicks in the girl's locker room and on the girl's swim team will more than cancel out outrage over Roe.
Also, no new meetings. Going to guess the last meeting ended with someone SCREEEING genocide at everyone else.
Edit edit: the last meeting was with a campus free speech group, likely concerned that the title IX rule would be used to shut down discussions about gender ideology, and compel students speech (pronouns).