Problem I have with Vulperans is this - As Horde, you help Zandalars because you have interest to have a strong force to help out the Horde and you want to prove that to them and I am fine with that part.
However, you sort of do the same with Vulperans but it’s not same kind of help. Zandalari Trolls look for someone like YOU to help them out because numbers are thin and Vulperans ask of YOU to help them out because they are weak and you just tend to help those in need.
All of this happens during “open war” with Alliance. They are merchants and nomads. I would rather have them run chores around Orgrimmar than joining in fight. You might accidentally step over one.