If you think Alves is still comparable to other world class full backs, I can't do anything about it. Either you watch the games closely or you don't. If you did, you would have noticed the sheer amount of times where Alves loses the ball or makes useless crosses that were never going to get anywhere from the beginning. Unfortunately, crosses to the other side of the pitch are also considered 'accurate' and that's why Alves doesn't look as bad there as he should, if we counted the crosses that actually led to something, he would be way behind. Montoya on the other hand plays way more smartly, he only crosses when he sees a good chance, otherwise he keeps the ball in our possession, and it obviously worked today.
And if anything, your statistics prove me right in saying that Alves makes crosses because he doesn't know what to do with the ball or doesn't have the patience, how could you otherwise explain why he almost made as many crosses as Lahm and Alaba together last season, considering the height of our players?
Saying Alves is still at the top of his game and comparable to the best full backs out there is, frankly, an insult to what he used to be. Right now, he's just a shadow of his former self. He has a great game or a great streak of games here and there, but that's it.