Pogba is not a leader and never will be. Leading is not only screaming at your teammates but also leading by example. Pogba never lead anything by example apart from his Instagram.
About the things going our way:
1: The handball was never a penalty, his arm was in a natural position. Never in a million years is that a penalty.
2: Lewa wasn't blocking that much, he wasn't trying to obstruct Buffon at any time. You can argue it should be disallowed but it wasn't and most of these sort of goals stands. Lewa is with a distance of two meters to Buffon, not next to him. You can argue for it being the wrong call but it's not a clear cut situation.
3: The one on Bonucci could be a foul, agreed. But it's not like you couldn't prevent Robben from cutting inside as he didn't score just a second after. It took close to 15 seconds so you had plenty of time to sort it out. You can also argue Bonucci is the one backing into the run of Lewa as he takes a step into him running towards him. So Bonucci is actually the one trying to obstruct Lewa but fails. Notice how Pogba jogs back literally not giving a shit
4: Yes that was an obvious mistake, that goal should never have been disallowed. But all the others are 50/50 calls and there's no clear mistake in them.
The others I don't know and as you can't remember them they're probably not even notable or noteworthy.
Anyway I don't hate or dislike Pogba. I just don't rate him like a prime Vidal as he never showed to have a package as complete as the Chilean. Pogba probably has better skills and maybe vision but Vidal is certainly not poor at giving a good long or through ball. He just stands out for so much more.
Pogba needs a hardworking midfielder besides him else he's lost or even worse his team is having a hard time to control the game. Thank fuck he got Kante to do all the work for him.