<p>Several if not many states have university “systems” that all have the same name. Pennsylvania and Wisconsin are two that come instantly to mind and I’m sure there are others so it’s not “odd” to have several locations of a university with the same name and a diploma that has the system name even if it feels “odd” to you. I believe that technically the diploma grantor IS University of Michigan and the campus and diploma are somewhere but subordinate to the university system name (University of Michigan).</p>