555,
Just to be correct, Emirates does not have daily flights to YYZ. They only have 3 per week. Yes they would like daily to YYZ and also YVR and YYC.
Looking at the route structure AC has access to with LH and the Star Alliance they have daily access to Dubai India and Africa. EK would be offering an alternative to passengers for those same destinations. Why is the government denying alternative choice for pax and goods to/from these regions? Who benefits most from this policy? I would suggest the only real beneficiaries are AC and LH.
With all the Tim Hortons popping up in Dubai, there must be enough Canadian content to support more traffic! ;-)
Regarding Qatar, it is a different country altogether; separate airline and bilateral.