Our immigration minister has stated that the current in flux, while large, is not yet considered a "mass migration" that warrants a policy change.

I would tend to agree but it would prudent to keep a close eye on it. As the author suggests there are a large number of other refugees in the US that may soon feel unwelcome there.

One easy policy change would be to extend the safe 3rd country rule to include people crossing at any point in the border - not just a border crossing. This would allow agents to immediately return them to the closest US border agents. Of course this does not allow us to help the truly vulnerable who arrive at our shores. Not very Canadian.

So I believe the government has calibrated its response to this quite well.  For now.