You are maybe jumping to conclusions. 

The article says that the commissioner told Morneau he did not have to put his ownership of the family business into a blind test. As far as I can tell a blind trust would be of little value in this situation.

A blind trust would make no difference if it held just his ownership stake in the family company until he left office. 

If he owned shares of publicly traded companies like Bombardier, a blind trust would be essential for them. Since there is no mention of them he probably did set up a blind trust for investments outside the family business.

This is issue has no legs but it is interesting how people react to it.