It seems that Arsenal are not entirely lucky with the time available and they always face difficult opponents to beat. In the domestic league competition last season they were almost able to win the title they had been longing for but indeed the euphoria of all the players and even the coaches was out of control and they were not ready for the successive failures that left Arsenal far behind Manchester City.
Whatever Arsenal do they will still struggle even for the champions league though. It's like they don't have a strong identity that allows them to become the flagship champion for the champion's league competition and therefore they will still be in the same phase before they can achieve that.
It's not a matter of luck because when they strive to be the best then other clubs will definitely not stay silent.
I think Arsenal know what the qualifications are to be in the EPL so they have to try again and again to be able to continue to compete and be in the top competition both in domestic competitions and in the Champions League.
The EPL is one of the most difficult places for the league so when one club cannot adapt and continue to upgrade themselves then the club will be eliminated from the competition.
Right now there is no other way but to keep trying again for Arsenal to achieve a good performance. Last season Arsenal were already on the right track only at the end of the season they failed to continue the positive trend and now the hope is that Arsenal will not make the same mistake with the tight schedule they will face in the new season.
This is actually something that can be considered as luck or not, because there are several reasons why things like this happen.
I'll start by saying it's not luck, like if they had played better than the rest of the club, then they would have been the best. But if we attribute it to luck, then there is a connection. For example, last season they did well from the start of the season, and they even held first place for a very long time. But towards the end they weren't consistent enough, and unfortunately there were clubs that were more consistent than them.
As I said at the beginning, when talking about this there are certainly things that will then be very related, including luck. We can't deny that it does exist in the world of football.