Ok. With a friend experimenting with a piece of software that is used for stuff like doing custom poses and such in Gpose, you can edit the character's appearance, change the gear they wear, etc. Through this you can change the hairstyle of the Hrothgar... And
A) Our ears don't change. What a surprise.
B) The differences that are there are things that can be changed with slight adjustments to the hairstyle itself. For example holes in the hair that usually the ears would cover. Etc.
Example A
Example B
Again. These are all changes that a single modder has been able to fix. And made adjustments to the hairstyles themselves. This being the same modder who made basically all of the hats compatible with both hrothgar and viera. A single person was able to do this. This same modder also does the Viera hat and hairstyles mod as well. If one developer who, according to their twitter is studying a Bachelors in Game Design. So someone who is doing this in their spare time. Can complete this and do it in a manner which is overlaying game files and flipping switches. Why is it so hard for a multi-million dollar company to do so?
But alas. Small Indie Company I guess.