People forget that that was only five premier league games. Not exactly ground-breaking. Even then two of them were draws against Wolves and Everton. We've had plenty of runs like that over the years with Pogba.
If Matic and Fred were the players we 'bought to accommodate Pogba', we've bought badly. Matic has been poor more than he's been good during his time here. He was good for half a season in 17/18, was the second worst player in the squad for most of 18/19 before having a decent 1-2 months at the end, and had a good 2 month period in 19/20 when he returned from injury until lockdown. Less than a full season of good form spread out over three seasons. It makes Pogba look like Mr Consistent.
Pogba has also barely played with Fred. Fred was incredibly bad in his first season so didn't play all that often and shouldn't really be judged on that, then Pogba was injured most of last season. When he finally came back it was Fred who dropped to the bench.
It simply comes down to this. How do you think Bruno would be going if we'd been playing him in a midfield two next to a Matic who is slow and poor more often than not? That's what we're judging Pogba on. Instead Bruno got to play with both Matic and Fred behind him which, even though it's not ideal, would also probably be the best combination for Pogba. Something that we've not actually seen other than a few games when Fred first joined and was struggling massively with the English game. The closest Pogba really came was when Ole first took over and he was mostly played next to Matic and Herrera (similar workrate to Fred but less of a playmaker) and we smashed everything in our way for a while. Even when our form dropped away at the end of that season the only game we lost when playing all three of them was the first leg against PSG.
Don't get me wrong, Pogba still has to take his fair share of the blame. He still should have been better than what he has been, and he's had a couple of periods where he's been extremely poor which there isn't any excuse for. But at the same time he's largely been set up to fail by poor team-building and management IMO, in a way that ensured he could never really show his true ability consistently. Now we're at the point we probably need to choose one of them (it'll be Bruno) and replace the other (Pogba) with a midfielder who's suited to that role. But it's (hopefully) going to be the same player we should have bought years ago to play next to Pogba.