If they didn't just find out why did they wait to say something until well after the announcement of the upcoming visit and China's provocative statements re human rights? If they didn't just find out why didn't they say something about it long before now? Obviously it is a matter of personal interpretation but the way this is presented is as if they just found out. The story says:
"came in reaction to a Globe and Mail story that revealed the Chinese government employs torture to extract confessions from people arrested on corruption charges"
Makes it sound as if they just found out. If not then they knew about it but only said something when the Globe revealed it. That presents a whole different set of worries for Canadian citizens.