I don't think they need glowing eyes anyway? Why do they? You know some people prefer vanilla style vampire eyes over the new dawnguard ones. And even though beast race vamp eyes are not exactly the same as the old eyes for the Man or Elf vamps, they still are a form of vanilla eyes.
In vanilla skyrim vampire eyes did not all look exactly the same, so why should they in dawnguard?
Having beast race vamps not have glowing eyes, gives a chance for players who don't want glowing eyes on their vamps, to be able to do that.
Beast race vamps not having the glowing eyes like Man or Elf races do, actually make them more unique then they already are (after all its only beast races that get visable fangs unlike the other races)
actually, if you look closely you do have visible fangs as a man.
I was trying to sneak out of combat (in 3rd person) and looked behind me. Since I was looking behind me I could see my char.s face. What is interesting is that his mouth was slightly open and you could actually see his fangs! So far the only way I've seen him open his mouth was while in combat but still - visible fangs!
I also agree with the fact that beast races feel a bit ignored in TES series..which is upsetting because my first character in every one is a khajit.
It's also not about whether or not people like the old eyes more, it's about the fact that everyone's eyes were supposed to change and the beast races didn't only because of more overlooking on the beast races part...