That was probably just a random student who learned some fun stuff in Security class and slept through the Ethics lesson. I can't speak for UMich, but security research at my university (NC State) has a very strict "don't attack civilians" policy.
> hosting a .com commercial site
First off, .com sites are not necessarily commercial. Second, this isn't a commercial site, it's an informational page about a recently discovered TLS vulnerability.
You may be overreacting and unwillingly supporting erosion of civil rights.
It could be a student in the dorms who discovered metasploit though. Or someone in the computer lab who has a tool that doesn't need root. (or who rooted the lab computer)
http://www.tcpiputils.com/browse/ip-address/141.212.122.194
Edit: They have been on that list for a while, so either the staff at the University is incompetent or they don't care; what was your point again?
Nonetheless, if this bothers you, visiting the IP that scanned you gives you instructions for opting out: http://141.212.122.194
Have you reported the activity against your home network to UMichigan?
As an aside I wonder why our tax dollars are being used to support unauthorized vulnerability attempts and for hosting a .com commercial site?
Is it legal for the person/people operating freakattack.com to use US Tax Income to fund their own commercial efforts using University resources? I didn't graduate college, maybe it's legal for them to do this?