There might be a political element to this as well. Although it's probably sarcastic, I've seen multiple comments on Twitter saying that everytime Lia swims, The Democrats lose 10 Senate seats. Obviously no (political) science truth or evidence behind that, but it does point to the now increasingly apparent fear that Democrat supporters have that the mid-term Senate Elections later this year are going to be catastrophic.
And someone will need blaming, and The Democrat Party won't fancy blaming itself, so it will be casting a net to find someone or something to blame. I imagine the NCAA will be caught in that net.
Hence the NCAA's desperate efforts to shift responsibility to the individual States and colleges (universities in our speak) The Ivy League, The Women's Sports Foundation...anyone it can blame, rather than being left holding the parcel come November. Indeed this is a game of pass-the-parcel, when likely State legislatures will try to divest responsibility onto colleges, back to the NCAA, and they'll be trying to do the same. Then the clock will run out in November and whoever is lumbered with responsibility, gets the blame. At-the-moment I think The Ivy League and Women's Sports Foundation will be likely left carrying-the-can, having not realised in time that everyone else has distanced themselves from supporting Thomas.
I suspect that this 'they' has seen the writing-on-the-wall and realises they have to get away from NCAA, just to be sure they don't slip on all the spilled blood.