Comment by Denvercoder9

It's not a ban on people, it's a ban on the institution that has demonstrated they can't be trusted to act in good faith.

If people affilated with the UMN want to contribute to the Linux kernel, they can still do that on a personal title. They just can't do it as part of UMN research, but given that UMN has demonstrated they don't have safeguards to prevent bad faith research, that seems reasonable.