Gao Yang would find it absurd to know how Russia would react, so he couldn't speak too specifically, just generally indicating what a normal reaction would be.
What constitutes a normal reaction? Expressing opposition and regret, maybe at most making a couple of statements, and that would be it. What else could they do? Yemen was never part of Russia's traditional sphere of influence, nor is it a significant current interest. Besides speaking out, what else could they possibly do? Moreover, even if Russia wanted to act now, it would find itself unable to do much and can only make a few perfunctory comments.
So it's sufficient to say that Russia would have a normal reaction; it's definitely not wrong, and it won't even waste any saliva. Anyone with some understanding of international politics knows what a normal reaction means.
