As for Arsenal, it's true that their performance against Chelsea wasn't as expected. Jorginho's inclusion in the lineup may have been a surprise, and it did seem to affect their midfield dynamic. Nevertheless, the league is a long race, and teams have their ups and downs.
Each team will face disappointing moments but with Guardiola's Man City still very much alive and kicking, every point matters. Those two points could haunt Arteta when the season ends.