>>57008585That... really doesn't feel like it makes sense. Ninetales is generally shown as at least twice the size of the Eeveelutions, Vulpix is more around the size of the Eeveelutions than Ninetales.
I'm going to chalk that up to just more of the Pokedex being a mess, after all, we all know that infamous Eeveelution size chart that shows that they weren't even measured properly.