Did Arsenal make a mistake by letting Aubameyang go?

Good day everyone, it's feels good to be back, I was busy with school work so I was away for a while, but now I am back.

So as an Arsenal fan, I am happy that we won our match and got the revenge over Brentford and Smith Rowe and Saka turned up with the amazing goals. I also love Party dominate display in the Midfield and his ability to also move forward and try creating chances too, but I feel he should work on his shooting drills.

Another amazing thing during the weekend is that Aubameyang scored his first goal for Barcelona and also his first hatrick since the pedri goal was credited to him.

I am definitely happy for him and how he is able to adapt quickly and find his feet in Barcelona and la liga but as an Arsenal fan I can't help but think whether we made a wrong choice in letting him go just like that, with the incredible ability and the amount of goals he scored for us every season, just because he had a problem with the manager. We couldn't even give him the honor of playing his last match or even a tribute.

Source
One thing that caught my attention is that this is not the first time something like this will be happening, we can also see how Arteta let Ozil leave without any tribute also. I can remember someone telling me months ago that Mikel Arteta lacks player management, he doesn't have the ability of maintaining a healthy relationship with players and when things turn sour he doesn't know how to settle things, he prefers to let them go. I feel he got this attitude from Pep Guardiola.

Source
All I can wish for his that this decision doesn't affect us on the long run, because currently we don't have any goal scoring striker. Lacazette doesn't score very often and for how long will we depend on Smith Rowe and Saka?

Thank you all for reading, once again I am back .

Cc. @worldoffootball
Cc. @njaywan