There are guys on NTs that put up higher ratings than he does, and against stiffer competition. I am too lazy to search around, but you could just just the best NTs of the BB world.
Ratings are not an accurate meassure of how good a player is. I think he is by far the best Spanish NT player, and arguably the best I have seen overall. And as a Rivals Scout of the NT I have seen a lot. But when a player has maxed its training who is best depends on what kind of player you like. There are plenty of players who have maxed their trainings.