Pretty much knew they were coming out for ages. I wouldn't say disappointed, just they feel delayed almost for too long, especially Vulpera.
Personally I have no intention of even making a Mechagnome. Between having 49 Characters already and disliking Gnomes, I have no love for them. I also strongly dislike that their limbs are not covered by Armour and being a transmog fan, I don't really like it. Their heritage armour is decent but as I said, I just plain don't like them.
I actually like Vulpera. I think they look alright, although I personally think their faces could do with a few more options but I will make an Alt one. I don't like their heritage armour but there's a lot of decent sets pre BFA for them to use. Also love the dance, kind of expected it. Also if anyone hasn't see this it's great (
https://www.youtube.com/watch?v=QGnM_MluWaM).
I'm more curious now as to what the final pair of Allied Races are. I'm half expecting something to be announced during Blizzcon similar to Void Elves/LFD/HMT and Nightborne to go with the 9.0 announcement.