I completely agree that there is no requirement for Q to play Uconn to give Stewart a home game - it is his gym and he can schedule who he wants to, and I have no issue with him saying no. A bunch of other coaches have done the same in similar situations.
I personally think it was probably a bad PR move and with the team playing in that barn to generally empty houses, it would not have hurt to get a lot of local folks into the building to see Breanna and show them that Syracuse is not a bad team either. I suspect a lot of high school and younger girls teams would have tried to attend that game, and that could have helped recruiting efforts more than sparsely attended normal home games.