The point was that your first sentence and Arteta / Arse have little to no relevance to us!
Acun has concluded that, in spite of the promises from Rosenior of what would come when he joined and again last summer and subsequently, he no longer has faith in Roseniors ability to deliver the style of football he wants to see. Each to their own opinion but for some of us it's very easy to agree with Acuns conclusion as we've basically been saying the same for many months (a year or so even).
It's as simple as that. I don't see why some people need to complicate it, compare it to other clubs that aren't us, suggest we go support someone else, or whatever.