You're right...but still, even if Islam gets there and they do convert and accept all the alcohol stuff and so on and so on eventually a Crusade would crush them.
Ah, the second largest cliche in Islamic TLs:
"Yeah well, they'll just die to a Crusade."
In AH.com
Crusade > anything Islamic
Logistics? Socio-political will? Nuance? Diplomacy? The fact that Al-Andalus and Russia would be Muslim ITTL? Fuck all that, Crusades trump everything, which is why Ottomans stayed a rump Turk principality in Anatolia.