New hrothgar hairstyles are really bad.

[Chikatsu]

Anybody who knows anything at all about programming will know that client-side art assets have nothing to do with server code.

Let's step through this logically:

1. Client-side mods are able to fix the Hrothgar hair
2. Therefore, back-end server changes are not necessary to fix the Hrothgar hair.

"But other players can't see it!"

Other players can't see it, because the fixes are done to your local copy of the art assets. The game doesn't dynamically stream models and textures from the server, because art assets are invariant, and there is no reason to waste network bandwidth transmitting data that never changes. When you see a Hrothgar in-game, the server says, "Hey, load a Hrothgar with X height, Y face, and Z hair," and the game client loads that stuff from its local copy of the art assets.

Square could easily fix the models and roll them out in a new version of the client. No actual coding would be required. No "sPaGhEtTi CoDe" boogeymen would show up to ruin everything.

Source: I'm a programmer at my day job, with fourteen years' experience writing server code.

but you see, that would require effort