Come on, don't expect too much from Arsenal because they have disappointed their fans too often. It's not about how strong their defense is, not how creative their midfielders are, nor how productive their attackers are, but this about the winning mentality that Arsenal lacks.
Remember that Arsenal always fail at the end of the season and open the way for Manchester City. This is clearly a weakness that Arteta should be able to patch up this season, but it's not easy to change it in an instant. Arsenal's performance consistency is good at the beginning of the season, but they will decline as the season draws to a close, that's the scenario of their failure so far.
You are been biased for these statements you made about Arsenal, I think you have to keep sentiment aside and tell the truth because everyone has seen the changes Arteta has brought into the Arsenal squad. His effort towards winning the League in the last two season were recognised because the team stood out to outperform Manchester City, just that inexperience let them done to gave Manchester City the title.
Last season, it was due to lack of prolific striker; and even though no striker has been signed yet, I don't think Arsenal will lose some kind matches they lost season because one of them has been corrected already.
Nevertheless, you cannot desipute the fact that Arsenal have good creative midfielders, they have good squad depth and have signed good players that will help the team, the only problem now is a reliable striker because Gabriel Jesus is not reliable due to injury.