Well, I think totally opposite. And I believe CCP agrees with me on this one that there is no "propaganda" value in painting the Russians "cheating". Russia is very valuable to China that China is willing to tolerate something not very nice (assuming it is true), for now at least. On the other hand, it is more of a "propaganda" value to loud the negativity of countries to the east of China for reasons we all know very well. That being the first priority in China's watch list, "rigging" in a tank game is nothing.
Simply put, China (the state) is not so stupid to not to see the intentions of sabotaging Sino-Russo relationship, so will not allow it to happen. Same thing was done (denouncing/rebutting) by Sputnik against an article by a Russian scholar alarming China's recent anti-terror agreement with Tajikistan, Pakistan and Afghanistan. On a strategic level, Xi and Putin are on the same page.
Also, why would you trust China Daily if it does make an article about "Russian cheating"? From your many previous posts, I get that you dismiss any Chinese official media outlet as simply "propagandas" and "covering ups". Do you selectively believe the "propagandists"?