It is encouraging to see Canada, which has far too long been politically docile, standing its ground. Before raising the stakes, the Emiratis may do well to study Canada's reaction to Aeroflot in 2003 (hint: read page 238-240 of Robert Milton's book "Straight from the Top") after the Russians suddenly denied overflight of their airspace on Air Canada's Toronto- New Delhi route and demanded unlimited 5th Freedom Rights as a precondition for continued overflight of Russian airspace.
Besides, headstrong people from Toronto will butt heads with with the headstrong from Dubai, because Torontonians are also totally convinced that their city
is the center of the universe. Can't use logic as a tool to convince people who "believe" something of otherwise.