Yeah they did stop talking shit lol I can think of two mistakes off the top of my head that Arteta made which cost us 2 goals & 3 points in 35 minutes after being subbed on and off vs West Brom last season but yeah I agree neither have been as rash as Xhaka has that's just not in their make up.
Yeah some were just plain stupid but the fair share of them have been good fouls in the sense that at least Xhaka's had the train of thought to stop the oppositions counters in their tracks (albeit he could have done so abit more subtly) which can't be said for any of our other midfielders, for example Coquelin vs Hazard
It's not at least not entirely, that's partly down to Xhaka and the structure of the team.
His midfield partner has played apart in it though unless you think Xhaka's something his not and has the ability to by pass the high press all of his on a consistent basis like Santi used to do.
That's fair he has but given how poor we are from a tactical perspective is that really a surprise tho?
If Xhaka's going to fulfill his potential he needs to be given the right platform around him to do so, otherwise we could swap him for someone like Toni Kroos and it still wouldn't make a difference because that's how fucked the structure of our team is especially in the big games where we rely on individual brilliance rather than a well drilled tactical unit.