How the heck did UK's APR get so low?
I do not know the specifics, but this typically happens when you have a coaching change every three years, because half of the APR score is based on student-athlete retention until graduation.
A new coach (like Stoops was in 2013) is going to have as his first priority to upgrade the roster. That means some players currently in the program are going to transfer out or quit, and when they do that without graduating, it hurts the retention half of the APR score.
This is an important point, because the last thing the UK program wants is to change coaches again and have the APR score drop below 930. With the new rules, if that happens, UK wouldn't be eligible for a bowl at all.