While Snorrius' predictions do sound like something Paradox Games - like, a breakup of Russia isn't more possible then a breakup of the US, with the exception of North Caucasus. But North Caucasus sucks anyway.
While indeed only the Caucasus have any real likelyhood of breaking away from Russia, it is certainly not true that a Russian breakup is no more likely than U.S. While factors leading to potential breakup are considerably weaker than they were at the time the CIA report Snorrius was refering to was drafted, they still persist. The Russian economy remains dangerously dependent on resource extraction, and those resources remain unevenly distributed. Corruption and crime remain endemic. Other problems cited in the report, such as a cripplingly low birth rate, and high death rate also remain. Russian breakup is highly unlikely, while U.S. breakup is impossible without major unforseeable changes.