Arsenal's win against Newcastle in my opinion wasn't a stroke of luck, but this is Arsenal this season. They don't give up easily, and their set-pieces have been incredibly dangerous this season. This win puts Arsenal in second place in the standings, just two points behind Liverpool at the top.
Honestly judging by Liverpool and Arsenal performance, their consistency in attack and defense, Arsenal has the edge as a contender for the EPL title this season due to their strong squad depth. But right now, what Arsenal need to prove is whether they truly possess a champion's mentality.
Of course it's not by luck Arsenal can win this match, but saying this is Arsenal season sounds wrong lol.
Arsenal usually like this, they reach on the top table in early-middle season and then get slipped by other team. Arsenal's squad in this season looks balance, but Gyokeres haven't give a big contribution to Arsenal, few match they won are because of their older strikers.
I think Liverpool was bad because Ekitike was absent.