Those are fantastic numbers for the women's game, but I think it's a one-off. Caitlin Clark versus unbeaten South Carolina was a great storyline which won't be seen again soon.
As for the men's game, I think a number of factors were in play as others have pointed out. As good as UConn is, they're not a hot television ticket and watching them blow out one opponent after another does not make for gripping entertainment.
That said, the television ratings for this game were actually up a bit from last year, which isn't saying a lot since in recent years the viewer trend is definitely down. Even with that, however, last year's NCAA championship, a snoozer with San Diego State served up to UConn, was still the most-watched basketball game of the year, surpassing any of the NBA finals games.
But I agree, the landscape of the college game has changed so much, and unless you really follow a team and are a big fan, it's hard to get excited. Also, yes, the 9:20 tip in the East sucks, but it's been that way for a long time.