Right call for both. He would've been gone last summer if not for covid. He's turning 28 this season, picks up more and more injuries, looks slower and heavier than before, lacks the proper fitness and is a nightmare to find the right system to play him in. On top of that, he thrives in games where he has a lot more time on the ball than the premier league allows. With his contract expiring in 2022 when he'd be 29, giving him a new big contract as he's leaving his prime and well on the decline would be a bad idea. Let him be someone else's issue to get the best of.
Pogba himself, I don't have any ill feelings towards. He just isn't the right fit for us or the premier league and I think he knows that. Especially now where he's not part of our best 11 even.