The areas that we today identify with this faith had the history of a lot of science work before the invaders came. And the religion was also not that one:
From the five holy "sees" only Rome survived the invaders:
https://en.wikipedia.org/wiki/Apostolic_see#Listing_of_the_s...
"Rome, in Italy (Saint Peter and Saint Paul)
Constantinople, now Istanbul in present-day Turkey (Saint Andrew)
Alexandria, in Egypt (Saint Mark the Evangelist)[14][15][16]
Antioch, in present-day Turkey (Saint Peter)[17]
Jerusalem, in the Holy Land (Saint Peter and Saint James)[18]"
https://en.wikipedia.org/wiki/House_of_Wisdom
Richly illustrated. Versus
https://en.wikipedia.org/wiki/Aniconism_in_Islam
"For many years, Wahhabi clerics opposed the establishment of a television service in Saudi Arabia, as they believed it immoral to produce images of humans.[19] The introduction of television in 1965 offended some Saudis,[20] and one of King Faisal's nephews, Prince Khalid ibn Musa'id ibn 'Abd al-'Aziz,[21] was killed in a police shootout in August 1965 after he led an assault on one of the new television stations.[20]"
At your last paragraph, when you say "It'd been dealt with before" who/what are you referring to?
Eastern Christendom fleeing the encroachment of Islamic invaders (which is largely what reintroduced Aristotle to the West, not Islam) had grappled with the conflict between Platonic and Aristotelian theological influences for centuries prior to the Crusades. The dispute between Gregory Palamas and Barlaam of Seminara is the culmination of that conflict. In fact, there arguably wouldn't have even been Crusades if Islamic armies hadn't been actively assaulting Byzantium for centuries.
I think it's disingenuous to say that Aquinas resolved anything. He played a role in moving the West towards Aristotle, but that was not exactly an advancement. It'd been dealt with before.