Penn St was a tragedy; but, it was more or less a criminal case and not a NCAA violation and it seemed to be concentrated in one sport (football) and the leadership that supported that sport (coaching staff, AD, President).
Baylor is similar, though it looks to involve more that one sport and Title IX has been pulled into.
UNC was a case of the NCAA doing gymnastics to find every loophole imaginable to avoid slapping any penalty on one of their greatest cash cows. Just disgusting.
UConn made its mistakes; but, the penalty for what was done i comparison to what the NCAA did at other schools for much higher transgressions is appalling. It was basically a vendetta by Mark Emmert for UConn suing his arse over UConn 2000 mismanagement (he basically fled the state) and against Calhoun for the NCAA Title in 2011 combined with jealosly and fear by some of our neighbors on Chestnut Hill and Canada.
As for Louisville, they sold their soul for a shot at glory. Every one of their key people had questionable pasts - Jurich, Petrino, Pitino, and good old 'Papa' John Schnatter. It worked for a while, and more importantly, long enough for them to get into the ACC. But, the entire thing has finally collapsed under this rot. Should they get the death penalty, yes. Will they, no. Not only because the NCAA is a empty suit; but, also because of politics. The city of Louisville is holding the bag on the debt for the Yum Center and a 2 year death penalty on Louisville's basketball program could force the city to default on those debt payments. The city and state would then sue the NCAA, which would get ugly fast.