Actually, Mr. Knobb, those approval "ratings" did not meet the criteria for validity at legitimate universities.  For instance, the plaintiffs consistently reported that at Trump "University" their faux instructors gave them rating-survey forms that were NOT ANONYMOUS and required students to pick a rating DURING [or within minutes after the end of] a session, with their "instructor" present, when the students were still expecting further info from the "university".  Respectable colleges don't resort to such shady practices.  In sum, the deliberate preclusion of anonymity alone rendered those ratings unreliable -- too suspect for a prudent judge to accept as credible evidence.