Per College Basketball Reference, Gonzaga is 86th in SOS and Baylor is 75th. Those numbers will improve a bit after playing each other, but there’s a good chance that whichever team wins will have the worst SOS of a title team for as far back as I could look without getting bored (1960).
2006 Florida (64th) was the previous worst over that time period.
I don’t think this is a trend or anything or mean it as a critique of the teams. I think it’s entirely COVID related as each team had non conference games cancelled, including the game between each other.