Five games is a small sample size - although it does represent over 13% of the season. Already, Liverpool are averaging a point a game more than Arsenal.
That was a great result for them today. A City win might have sparked something in Pep's men. An Arsenal win would have reassured Arteta that his side can genuinely compete. As it is, both drop points, gain little in the way of confidence, whilst Liverpool sputter to inevitable wins by finding a way (not to play a fair amount of injury time).
All over by Christmas.