The tower also happens to be the place where most of humanity resides so its not really that out there.
Stand next to Zavala and look out. That’s humanity. The tower is for guardians primarily. The tower is a lookout/base section of the wall. The wall that surrounds the last city.
Look all around. There are plenty of civilians walking around. Theres even a ramen shop.
Yeah. There are. But there’s a vast city below. The tower is the guardians base. There’s gonna be civilians in there, maybe working or visiting but it would make a lot more sense if the black armoury was hidden somewhere else. Lazy dev team didn’t want to open up a new area is all.