I know this is a dead thread, but it's still relevant, so...
From everything I've read about the claims from the few disgruntled Trump U. former students, it seems that the business may have paid on commission. This often leads to a few employees engaging in high pressure sales tactics - something many former students said they never encountered.
You also have to realize that real estate is a tough business. You either do it right or you lose - often big-time. If the school taught what it promised to teach and the students simply couldn't keep up or make the best of it, that's the students problem (unless the rate is absurdly high).
In a genuine college (which Trump U. most certainly was not) you don't get a refund for a class you fail.
Then the one lady who admitted that she kept pestering her assigned mentor for a refund never mentions if she ever even tried to attend class.
It's really important to try and remain objective - Trump didn't run the company, despite his name being on it. He doesn't run most of his companies - he delegates.
This whole problem really sounds like it comes down to just a couple of bad employees trying to make large commissions.