Sorry, but you're wrong. The remark is about the performance. 79% means nothing without knowing the baseline of an uninformed method. I think you can agree that a coin toss will produce the proper result in 50% of all cases. So if the performance of a system on a binary choice is 50%, it's as good as a coin toss, no matter how it's implemented. Suppose you make a system that always prints "plaintiff wins". Then its performance will be the actual win rate for the plaintiff. If that happens to be 79%, the system's performance is 79% without any knowledge.
How representative the sample set is, is another question all together.
BTW, the actual numbers for 2015 are
So granted is 85% of all cases. So a system just printing "granted" will perform better (if refused is left out of consideration).