I can see it honestly, you try adding those hairs onto a unique head like that and it's not going to look exactly like the hairs you unlocked - so people are just going to complain because their unlocked hairs on this race don't look the same as the unlocked hairs on 'insert old race you were using it on'. Lighting hair would look like crap on Viera. The PvP hair and HoH hair would look like an absolute joke on Hrothgar without it being ridiculously edited. Same goes for the 'Snow' hair.

Hopefully, these new hairs for the race will look amazing and actually suit the races without looking like a gross copy and paste. Still, it's unfortunate that they the old hairs won't be unlocked. It would be wise to put information down regarding the limitation.