But it's all security theater. Plenty of people use it with VPNs, and I know several who found it useful / interesting enough to bother paying for it (which involves foreign credit cards etc so it's kind of a hassle). I'm sure so does the Russian govt.
In any case, I don't see how you could realistically block any of that without effectively walling off the rest of the Internet.
It does all feel like weird theatre that just makes anything american slightly annoying to use. So theres local startups and researchers working on replicating these things and making them easier to access.
If the usa dont want to make products available to the whole world out some combination of fear and patriotism, then china will instead.
It will most likely be a closely-guarded secret one, no?
In any case, if it's really that powerful, limiting it to one government sounds like a recipe for the worst kind of a one world state to me.