With the current 8-point difference that Arsenal has, it's definitely not something easy for Manchester City to follow. Despite Manchester City's performance, I know Sefang is committing massive aggression. But they also still have to be able to secure the condition of their players for the continuation of the Champions League.
But apart from all that I will admit that this season Arsenal are really closer to the trophy than Manchester city. The remaining few matches will be very carefully considered by Arteta.
On the one hand, I think Arsenal can really maximize all their potential and ability to win the Premier League title this season because it is the only title they can still hope for. Arsenal have failed in the Europa League, FA Cup and EFL Cup so they can focus 100% on the Premier League instead of Manchester City.
Meanwhile, Manchester City is still focused on the Champions League, FA Cup and Premier League. Manchester City is still very likely to win these three titles if they are at their best form. It's hard to expect Arsenal to slip up but there is always chance to expect Arsenal to lose especially in some of the big match this season. Until Arsenal have not locked the title this season with point advantage, then of course there is hope for Manchester City to thwart it.