Steven, The OpenLDAP Foundation believes it the Regents' statement grants a license to redistribute derived works and is confident that the University, who is quite aware of our actions (as they actively participate in them), does not consider our actions to infringe on their rights. You are welcomed to your opinions. I suggest, however, that before you rely on your or other people's opinions (including ours), that you consult with a lawyer familiar with applicable law and the particulars of your situation.
The Foundation sees no reason for it to expend its limited resources seeking clarifications which it believes are unnecessary. You are, of course, welcomed to expend time and energy seeking clarifications you think are necessary. I suggest you contact University's general counsel office (http://www.umich.edu/~vpgc/). Regards, Kurt