..."About a dozen vacation-rental platforms operate in Vancouver. Only Airbnb, the operator with by far the largest number of units, and HomeAway/VRBO have had direct negotiations with the city."...

And will those other vacation rental platforms continue to operate with impunity when/if agreements with AirBnB and VRBO are formulated?

Right now Lyft and Uber are not allowed to  operate in BC.  And yet Uber clones like Racoon Go and Udi Kuaiche, are rolling along under the radar and service Metro Vancouver. 

Could it be...nah, could it?  That Chinese language short term rental companies, and Chinese language ride share companies, face different enforcements and political attention  here in Metro Vancouver?