It
is moot because you complained that you would have to be in visage form
during combat to see the weapon sheathed on their backs. And the reason it is moot is because, during combat,
the weapon would be in your hands.
There are zero technical limitations. If Blizzard wanted they could have the weapon clip through the wings with no problem.
Like they do with the chest armor already.
Not to mention they can just make the weapon disappear when sheathed on their backs while in Dracthyr form. Besides, this "hiding weapon when sheathed on the back" that you call so egregious that it would never happen...
is already happening in the game FOR THE DRACTHYR:
You see that?
Staves. That the dracthyr can use. Staves that are stashed
on your back.
Nope. I never even mentioned anything regarding "staying in visage form all the time" since it's immaterial to this discussion.
- - - Updated - - -
*shrugs* They have servants, in the form of drakonids.
But the point is that it's highly unlikely that dragons ever built anything, and just lived 'on the land', and all buildings they currently may inhabit, such as the Wyrmrest Temple likely were built by the Titan Keepers, which would include the buildings in the Dragon Isles, which would explain and make sense why there's so much iconography for Tyr, especially if he was the one who supervised its construction.