It's really hard to notice that even if your teammates trying to tell you. Your focus is on the ball and the situation is just too fast to notice what your teammates trying to tell you and react accordingly. I guess you haven't played football much. I mean no offense but if you've played enough you'd understand that. That's why players with superb awareness like De Jong are rated really high. If that's easy we don't need such awareness to play there, any player can play there you known.
And no, if you replace Pogba with Busquet we won't have any of such problem. Imo Busquet is one of the best DM with the best awareness, game reading and pressing resistance in the last 20 years. He made it so simple but it's not simple at all.
Agreed on the part with Matic though, we definitely need a better DM. Someone like Busquet would be fantastic but I known I'm day dreaming