First, UA doesn't owe you any explanation. I bombed the first interview and didn't get an explanation. Second. The folks saying they have no idea why they go dropped out off the cpp during the final review. I guarantee there is a good reason. Some are embarrassed to admit. Some ticked off. It's easier when you know you have something in your background and hoping they won't catch it to tell everyone you don't know why you got dropped out of the program. But whether they admit it or not there was something in their background.