All along the journey to the title last season, Arsenal has been at their best and I don't think of they didn't have the mentality they would have been able to have gone as far as they went and were able to become the runner up by a point difference, the only thing I see as the problem Arsenal had was timing and priority, they gave priority to the premier league late and so they didn't get the right timing to maintain their wins enough to give them the edge over Manchester city because at some point when they were at the top of the table, they felt they have got enough points ahead and shifted priority to the champions league awhile.
Arsenal have experienced failure several times and ended up as runners up, but next season I'm sure they won't fail again because Arteta has to really prepare everything to be better than before, he's just not good at rotating players so at the end of the season he experiences a big defeat. There is no need for Manchester City as its competitor to be free to maintain a gap in points to reclaim the EPL title this season, the new season is coming and Arsenal has certainly prepared themselves mentally to be even more mature.
Maybe Arteta can update their main squad and overhaul the existing shortcomings so that they can be consistent next season so they can bring Arsenal to win the EPL trophy next season. I think Arteta should focus more on chasing the EPL trophy than the UCL trophy because their level is not as champions of the UCL but the EPL There is still a possibility of winning it, hopefully next season will be Arsenal's luck in winning the EPL trophy next season and eliminating Manchester City from the top of the standings as well as breaking Manchester City's dominance as defending champions for four consecutive seasons.
This season the fight has been more than serious and it's not about Arsenal finishing poorly, it's about the fact that Manchester City made some mistakes in their time and that's why they let other teams fight so closely, but in the end put things right. All in all, if Manchester City falter next season, Arsenal do have a good chance of winning, but only if they don't deflate themselves