Using cautious language is appropriate in the West since it is commonly accepted that a much better standard of proof exists, that of a conclusion drawn by a judge or jury after a public trial.

This better standard does not exist in China.

In addition, there is a huge body of evidence that torture is routine in Chinese jails, particularly with respect to Falun Gong. 

Until such time as the Chinese start running their prison and judicial system in a civilized manner and start responding to such complaints in a manner that might grant denials some credibility, the language used in the article is a peccadillo at worst.

We can read. We can see who is saying what - you did yourself.