It's clearly not just Mourinho's tactics Pogba is highlighting, it's also the shit performances of the players in front of him like Lukaku, Sanchez, Lingard, and the total lack of anything from right back.
You can't simply blame the tactics for how bad Lukaku was against Wolves, for how bad Sanchez has been since arriving, and for how bad Valencia has been in opposition halves for the last 3-4 years.
Where the tactics really comes into it was, for instance, in bringing off Fred to allow Fellaini to go and shadow Lukaku up front. The pair of them and Lingard basically slouched around within 10 yards of each other for the last 30 minutes offering absolutely nothing. It's a pointless strategy in a team with a redundant right flank and an inverted winger on the other side. Meanwhile Pereira and Pogba end up getting overrun in midfield and resort to just hoofing it up aimlessly. As a tactic it has barely ever worked for us and the fact we still persist with it is just fecking baffling for someone of Mourinho's intellect.