"The frustration of the last 4+ seasons is enough to cause even the biggest fans to take a deeper look at the program, no?"
Not really. Before you start rooting around for systemic weaknesses in the SU program and assigning blame, you might want to take a deeper look at the impact of sanctions, the early departure of players, the strength of the ACC competition, the increased exposure of other programs and their competing for recruits
.
"I never once said that I wasn’t a Boeheim fan and didn’t appreciate what he’s done."
Yeah, sure. But what you didn't say is that you have faith in his intelligence and commitment to winning and his ability to make the best out of the players he has.
Losing to quality mid-majors is not a hanging offense, that I'm aware of. It happens, especially when you are trying to figure out what works in preparation for the real season in the ACC and, hopefully, the NCAA Tourney.