Arsenal's main target is not the Champions League but the Domestic League, winning the Champions League is a bonus for Arsenal, but Arsenal's game must remain consistent in the Champions League, even though there are many choices that Arsenal will take next season, that doesn't mean they are unable to compete, Arteta must focus with stamina and mentality that will be built next season.
Arsenal will want to target the champions league also as they will to the premier league since they’ll be participating in the competition like other ones. The champions league might be out of their reach even though they try but trying sometimes open doors of luck to a team sometime. There’s no harm in trying and if they try to go after the two trophies and making the one of the premier league a priority, it’ll really be great for them.
If we decide to focus to win all competition then we might lose all because their is no way you can chase two rat and be able to catch even one its not possible. So it will be better for Arsenal to focus more on the Premier League than want to win two trophies at once if it is possible.
I don’t see anything wrong in them trying to make a chase on the two trophies. If they don’t learn how to fight for two trophies at a time, how will they be able to win against teams that win two trophies or trebles in every season. This is not something that hard to do. If they’re not good as a team, they’ll lose out in all competitions they’re participating in even if they’re just focused on one competition. Let them extend their fight to more than one trophy a season.