I'd say that like many people, Fran roots for and favors the underdog. KU is never the underdog. Fran started covering the Big 12 in 2005, the first year of KU's streak. KU winning is all he's seen as an announcer. I'm sure he'd prefer to see a different ending than the one he's seen over and over.
KU's streak ending would probably be good for the health of the Big 12. I'm certainly not going to root for it to happen but there will be a silver lining when it does.
I can only imagine how many excuses you are going to make when the streak ends. We're still hearing about a good no call from the Villanova game a year later