Comment by kevingadd

Not all kernel reviewers are being paid by their employer to review patches. Kernel reviews are "free" to the contributor because everyone operates on the assumption that every contributor wants to make Linux better by contributing high-quality patches. In this case, multiple people from the University have decided that reviewers' time isn't valuable (so it's acceptable to waste it) and that the quality of the Kernel isn't important (so it's acceptable to make it worse on purpose). A ban is a completely appropriate response to this, and reverting until you can review all the commits is an appropriate safety measure.

Whether or not this indicates flaws in the review process is a separate issue, but I don't know how you can justify not reverting all the commits. It'd be highly irresponsible to leave them in.