Doesn't matter why he did what he did that was his choice.
I am sure that you know that the Penn league short season at Brooklyn is where the college guys start and that is a lot different than rookie. I am sure his next step will be be AA. But that would be in a normal year.
So we have a friend whose son was drafted high out of high school at 18 in 2012. He has been so far in 3 trades, now on the big club with a BA below the mendoza line. He told me last fall that if it didn't improve this spring he would probably be DFA.
I am pretty certain that if he had gone to UF with his mad skills it could have worked out better, with a degree.
JMO