Ball winning at 85 is very high simply because 80% that makes his tackle is by force and not by technique. That doesn't mean that Ball Winning should not receive a raise (I follow the Epsi account if I am not mistaken, where Ball winning is 70% def and 30% bb).
About def prow, which I also think of as a mixture of defense, response and teamwork, ends up having to be smaller than Ball Winning, possibly (since he has strength in 91).
So it is necessary to reinforce its main abilities are: the reaction, closing the spaces, and the decent positioning. In addition, reinforcing his "defects" would be a technically weak tackle (where the force is far superior to the technique) and the weakness in the explosion of his races (as it is already on set).
Within all alternatives, I think that by lowering defense by 80, increasing response by 84 and team work 78/79 ... we would be able to keep the set realistic and also realistically leave a ball winning at 83 (more power than technique, a 81def could overpower) and def prow at 81/82.
Edit: Anyway, nothing so different from what the set suggests but yes, he needs to have a better balance. We only have to putting in this set his great reactive capacity and mainly his surround style, block the spaces of the opponent. Also making clear his technical "deficiency" in tackles, camufled by his force.
Anyway, having watched all his games this year I think the set is very real, beeing sincere. I will test the values cited, even def in 79 combined with a higher teamwork maybe (I really don't know) and will be the first step to the defenders' revolution (not just them) in the Brazilian league.