Compare him to say Busquets or Scheweinsteiger. That's world class.
There are many proper anchors or registi... not all of them had the luck of ending up in a big club to be seen. Well, it's hard to call Milan a big club.
Busquets is a great anchor and complements Xavi-Iniesta perfectly. But as much as I love Van Bommel, I prefer the Xabi/Monto type, i.e. deeplying playmaker/DM hybrid, and a 3 man midfield with 3 two-way players. Would Busquets have done a better done job than Monto if his side CMs were Muntari/Noce/Flamini and not Xaviesta, the most creative & best CM duo of all time? We don't know, but I doubt it.
There are many players who can do half-decent jobs as anchors, like 36 yo Ambrosini, Daniel Andersson, Rolfes etc. But there are very few of Montolivo's level or higher.
did De Jong bang your girlfriend our something? I cant understand your level of hatred of one of our best players...
there are literally like 20 players that are a far bigger problem to our team than De Jong, who is very good.
The answer is in your post. His role is literally pivotal to the team and he isn't being recognized as the problem/obstacle that he is, unlike the Agazzis, Zaccardos and other fodders who nobody rates and that hardly have any influence in the team.
There's one thing De Jong fans have accurately observed though; Monto may have the armband, but this is De Jong's Milan! And it's a gigantic failure. Enjoy.