The Cdn government is quite clear on what their policy is. A bilateral agreement is required and one has been signed with the UAE.
Beyond that they require a 'level playing field' or equal benefits for both parties. The UAE provides, basically, one destination - Dubai. Canada provides more than that. So, at the moment each country can partake in flying to one destination.
The UAE can have more however they have to equalize the in equality in some manner. 5th freedom rights for Cdn carriers to transit through Dubai or other types of agreements.
EK likes to tout that they and the UAE support liberalization etc but they stand to benifit the most. Regardless of where they fly to they can serve several destinations yet the others can serve only Dubai (ok, Abu Dhabi as well if you want to count that since its only 45 min away by car).
EK wants liberal policy because their plan is to transit pax through Dubai from all over the world. The number of actual O&D pax (those coming to Dubai basically as a destination) is less than 20% of all their business. They have everything to gain.