He went straight into starting eleven, without having played a single minute in pre-season, with Baleba and Ayari on the bench.He started because of the reduced options available due to injury / not arrived at the club yet.
According to you - who can value players more accurately than the combined might of the Premier League's 20 recruitment teams - he's a £50m+ player. When he's going for less than a third of that. there would be suitors from the Premier League.
He may choose Napoli over them, for the reasons you allude to, but there hasn't been a single whisper that any PL clubs would like to take him.
And, to be clear, I'm not for one second suggesting there's anything wrong with BG to deter other clubs, but it strikes me as totally bizarre there have been no links at all.
He was A LOT better against United than Wieffer was against Everton. It remains to be seen if Wieffer is the free-scoring ball winning playmaker everyone expects him to be.
Don't know why the whole "no rumours about suitors from the Premier League" matters? Top teams don't want him and everyone else is more or less skint and in no position to buy players from league rivals.