Why Attach Horn Style to the Face?

[Mardel]

They had to attach the horns to the face, due to how the gear models work in this game. Otherwise there will be an issue with big holes in Au'Ri hats and it would look very bad, and take more development time. This doesn't even include the potential issues with hair. I'm almost certain each hair had to be altered per Au'ri horn type. This means they already effectively put 4 times the effort than what the other races had to deal with.

Many games already do this: Tera, Blade N Soul, and other random korean mmos.