Which is exactly what the first paragraph states: "are pursuing measures to rid vendor lock-in of strategically important software"
Why should Russia (or any organization, from 1 person up to nations) prefer vendor lock-in over something that they can control?
Russia doesn't want GNU, they just want a Russian Microsoft that's in Putin's pocket like everything else.
Take a look at what's happened to VKontakte some time.
Of course the Russian government wants to be able to control their systems, and any positive effects for others are at best some nice PR.
How does that detract any value from ReactOS (or Linux, which is their "other" desktop and server OS)?
One of the principles of Open Source (compared to Free Software) is the idea that people and organizations work in a project where every contributor works in their self-interest. Why is this suddenly a bad thing?
Good luck with that; Russia isn't interested in software freedom, they're just not interested in something from outside Russia they can't control.
EDIT: A friend informs me that the head of the project is himself Russian, and already works largely under government funding. So in retrospect, less "amoral tech nerds take money from wherever they can get it" and more "some Russian bureaucrats want their own Red Star OS".