I was really amazed at the conduct of various U of MN officials and researchers back when all this went down. The researchers desperately deflected and hurled accusations despite being very obviously in the wrong, and the U of MN officials did much of the same deflection. At one point they were asked to ensure that their ethics board would prevent things like this in the future, and the university's response was essentially "well we aren't technically required to do that, so we aren't going to, but we will add yet another ethics workshop to our next staff meeting :)"
The ban was entirely justified in my opinion.