I’m not typically a tinfoil hat type of person, but I, at least, have a heavy amount of skepticism towards your comment. Bluntly, it reads like it was taken directly from some pre-approved list of PRC propaganda.
However, we don't need to resort to tinfoil to point out that their anecdote misses the point. "Don't be political" is poor advice when Canadian citizenship is perceived through a political lens.
You're not going to be able to collect enough relevant anecdotes on a brief visit to be able to make a meaningful statement about much beyond your own personal experiences. You can't see or experience much as one person, and in a place like the Soviet Union, things will be hidden from you.
Also, your grammar errors arn’t those typically made by a Francophone. This is a tell.
I was afraid of China because of these random news. But when I finally went there in September, I was surprised as all the internet fear mongering was wrong. When you read your local newspaper and see a murder, are you afraid to go out ? No because it's an outlier, as is the case above. I went alone for 1 month in China and felt much safer than in France. But if you plan to go to China to play the game of law for money, then except to lose big. That's why the country feel safe, the risks are huge, that means dissuasion. Avoid political talk and don't be arrogant = 0 issues there.