If Arsenal had maintained the same level of performance they exhibited during the mid-season, they would have convincingly defeated Brighton. However, two factors influenced the outcome of that match. Firstly, Arsenal was determined to secure a victory against Brighton to gain an advantage in points ahead of Manchester City's upcoming match. Secondly, Brighton, was in 7th place, had aspirations of moving up to 6th place to secure a spot in the UEFA Conference League. They were highly motivated to remain relevant, which is why they put up a strong fight against Arsenal.
However, winning the league is not a guaranteed possibility for Arsenal, as they still have several challenging matches remaining even if they win brighton and it is unlikely that they will emerge victorious in all of them. Nevertheless, I am pleased that they will be competing in the Champions League next season.
Arsenal did the best they could and I wouldn't blame Arteta or the players for missing out on the league trophy this season, they did very well but their lack of good depth in the squad cost them the title. As things stand, winning the league is out of context for Arsenal this season they can only look forward to improving and finishing better next season.