Yes. Because Alexandria was a European-style kingdom of knights and magic that was transported to Tural after it advanced into the modern-esque society seen in-story.
You can't seriously tell me that these two sets of armor look like:
https://lds-img.finalfantasyxiv.com/...1P7c5IAYS4.jpg
https://upload.wikimedia.org/wikiped...ador_Armor.jpg
This entire line of reasoning is stupid outrage bait born of ignorance and a desire to start fights. I have Latino family members and none of them would think this is a conquistador's outfit if you showed it to them. The armor plating, silhouettes, helmets, and patterns look nothing like the armor of actual Spanish invaders.