I think there are just too few hrothgar players that SE probably doesn't deem it worthy to dedicate more resources to fix their hairstyles properly.

The total percentage of hrothgar players is like what, 1-2% of the entire playerbase? Especially if you compare to viera who are getting more hairstyles which don't hide their ears and look good. If you want fixes to hrothgar hairs, more people should fantasia to hrothgar so it becomes a more prominent issue and SE can no longer avoid it and just implement half-hearted fixes.