I would not be surprised if those executed were fentanyl mules working for the CCP used to sneak the substance into Canada and the U.S. They happened to be in the wrong place at the wrong time; with Canada seeking to appease the Trump administration on stopping the flow of deadly narcotics into the U.S. Maybe the executions were designed to destroy the chances of potential disclosure of that fact in light of the tariff pressures.
The execution of foreign nationals is not to be taken lightly, but Canadians (and Americans) would do well to recognize that China is the real enemy here.