As the article notes, the Canadian government has strong penalties for "misinformation" and even expressly true information likely to cause social unrest. So why would they want someone likely to at some point turn their desire to speak truth to power in the direction of some issue the Canadian government wants her to shut up about.

It's not incompetence or Kafkaesque, it's at some level a real concern to them.

As someone who also lives in a Commonwealth country, it's not surprising they ended up at this point.