Of course we are not anymore in the era of xavi-iniesta and we are not asking that much. But to be succesful in the long term a minimum of control is needed. If not we will get destroyed when facing the top dogs. Paulinho can't provide that and untill then even a 50 old man rakitic is still a better option.
Paulinhi profil is perfect against weaker sides or as sub.
Controlling possession is not necessary for success, it's been shown alot in recent football