So any matches previously resulted in 4-3; 4-2 were fixed, based on your reasoning?
I have no solid facts to comment on whether this match is fake or not.
But one thing for sure, according to the divorce case in Chinese court of previous Olympics gold medalist , Ma Lin, he has explicitly stated that his gold medal is fixed according to the Chinese politics authority. This is WANG Hao lost uglily in 2008 final.
You can watch that final for yourself.