Wrong, Ian.  The same rule is "In play" no matter HOW the individual claiming refugee status or asylum came into the country, swam, ran, walked drove, was driven. Canada can and does refuse entry--that's why the RCMP are in the "back road" areas, saying hello to the border-jumpers.

We are hearing about people coming across on the back roads simply because quite suddenly more of them are doing so. Not because there's a two-rule system at work.