UCONN can still make and win the tournament from the Big12. Being in the Big12 gives them even more money for basketball, as well as football and other sports again. If they wanted to drop football they would have done it when the BigEast stopped playing football instead of going independent. They just don’t make enough to put they money into it they need.
I would be curious to look up what their geography was like those years in American. Maybe it's not a big deal. Unlike our four new schools, Arizonza/CU/ASU/Utah and Gonzaga, UConn definitely wouldn't be hitting some new harder level of competition compared to Big East last year.
Also just curious in general which teams have had the most championship success in either major sport while playing a really spread out geographically road game schedule. Washington has always been really remote so I'm thinking Washington football is probably the best example for football having a few elite years. Creighton has been somewhat isolated as a hoops program and seems fine.