Genuinely, though, I wonder how centralized their vodka industry is. A few bombs could cause a fairly major crisis if as many people are alcoholic as rumoured.
And they'll still be able to source that no matter what. If Kim Jong Un can still get his Cognac, the elites in Russia would have no problem getting some crates through China.
Sure, that's already happening even with the dual use supplies. But it will make the supplychain more complicated and less steady and it will give us more clout on the countries reselling to them(China doesn't want lose access to the west, it's more about Central Asia). It will also make it cost more, but that's of no concern to these people.