it's never easy to play with fewer men even when the opponent is not a team fighting to win the Premier League title, Arsenal managed the game well even with 10 against 11 until Wolves also received a red card and the parity of players on the pitch was restored and they were able to capitalize on the opportunity by scoring with Calafiori. Arsenal got 3 very important points and they are still keeping them alive to win the Premier League
Arsenal are constantly being hampered by something, they couldn't become champions before because City dominated, and now Liverpool is hampering them. Yes, this win is very important for them, but now Liverpool is ahead of them by 6 points and has a game in hand, that is, they can potentially be ahead of Arsenal by 9 points, which seems too big a gap to me to say that Arsenal still has a chance to compete with Liverpool.