Generally people are silly. People will believe that a husky is a 'wolf hybrid' if you throw out some insane nonsense like "she's got 5% wolf blood" and sound technical about it.. and it's totally made up. I don't think most people even really know what a wolf or a fox looks like - otherwise, it's really weird that people say a friend's Shiba is a "fox" and that our Lilith is a "wolf"..
I honestly don't even think that the Vlcak looks much like a wolf either, the head (the stop and some other things) itself and the ears give it all away.
But back to your topic, I prefer to call the dogs Vlcaks too. When I talk to people who don't know anything about CSVs I stick with Vlcaks. "Wolfdog" is a generalized term here in the states and 99% of the time it's people who are either actually illegally breeding wolves to dogs, or they have some husky mixes that they're marketing as "wolf" dogs. Unfortunately for Vlcaks, that's what they're going to be associated with when the word 'wolfdog' is mentioned and in both cases it's not a good ethical place to be.
'Wolfhound' like "foxhound" means that the dog hunted wolves, which apparently wolfhounds did so well that they went extinct in that area..
I think it'll be exceedingly hard to get a name like 'wolfdog' to not be associated with, well, wolf hybrids. That's like naming a breed 'mutt dog' and then telling people 'no, but it's really not a mix.' .. Just my two cents.