Yes, I read your article, and it's very ridiculous. It's clear to me that China and Russia are friends, but China is not going to support anything rash like that. It's always these analysts from politic magazines coming from NATO who want to separate China and Russia, as China is vital to American success, while Russia is not. China has no sanctions on Russia.
China at it's greatest extent. And the Sino-Soviet split is not in effect, since there are no Soviets anymore. Russia and China got rid of their last territorial disputes in 2010, I think. Also, this land hasn't been Chinese since the 1800s, while Crimea was part of the RSFR until 1954; it would be like Russia annexing Ionian islands. Most of the other points on here are just speculation.