The left-back also rued how the Reds conceded "a poor goal from our point of view", explaining how previously "this season we've been really good at holding on to leads". Today is one test, how we are against a team like Liverpool.
"The manager has a new philosophy". That's it. We did that already outstandingly well and that's why it was obvious we didn't do it so well in the first half. He helps us, not only me but all the players, with the small things.
The start was like "Wow, Arsenal are there" but then the first attack we had, everyone knew 'OK, they are not too bad as well!' It was then a pretty open game.
According to Xhaka, another factor is Lucas Torreira.
"Alex Iwobi has flourished under him and he deserves a starting place".
Even Emery admitted Arsenal are far from the finished article, even citing Liverpool's gradual improvement in three years under Klopp as an example to follow.
"I'm happy with our performance and I think today the balance in the 90 minutes is more balanced positively with the control against them, but it's very hard to not let them have chances also".
"It is not a bad point but we need more", he added.
He has been likened to Chelsea's N'Golo Kante and you can see why.
The two-time Premier League victor won four aerial challenges, made three successful tackles and completed 39 of his attempted 46 passes.
The England international's form this season has grabbed the attention of the Reds faithful and we've taken a closer look after the weekend encounter...
While Wenger got the grand farewell he deserved for winning three Premier League titles in his first decade in charge, Iwobi's words are an indictment of how standards had slipped towards the end of the Frenchman's tenure.