Im trying to think as a non biased football player here.
He's seen Arsenal finish 2nd 3 seasons in a row, and just reach the Champions League semi final. He looks at the squad, and sees that nearly all the first team, guys like Timber, Saliba, Gabriel, Rice, Saka etc are either in their prime or still to hit their prime.
He will know everyone is saying Arsenal lack a 20 goal a season striker that can maybe take them over the line, and I'd imagine as confident striker he'd back himself to do that.
He's also just played against them a few months ago and ended up on the end of a bit of a beating.
And his representative will have spoke to Berta, who will have told him we are close to signing Zubimendi and really want to upgrade the attack, with him a key member of that.
Now, please don't think I'm saying Utd wouldn't be an attractive option, of course you are, and you have the added bonus of having his former boss as manager. I'm certainly not disrespecting Utd, I actually said in the Cunha thread I think he'd probably be better joining Utd than Arsenal as I think he'd have a nailed down position in that left 10 position. I just don't agree with your assessment of our position really.
Apologies - was typing as if I was speaking generally.