Certainly. Thank you for the question.
As it relates to British Columbia, I'm a little concerned about the user-friendliness of that database. It's not easy to search.
Ultimately, the disincentive of a beneficial ownership registry is.... I'll use a cliché. Let's say that you are an international money launderer. You do not want to be within the purview of your local government or any jurisdiction, so any country that allows you to obscure ownership and creates a registry that's easily searchable and user-friendly, naturally, is a jurisdiction that is not particularly welcoming for you. British Columbia has made a step in the right direction. It would be nice to see it open that up and make it a little more user-friendly and searchable.
I'm not sure that I have a detailed answer for your specific question. I don't claim to know the inner workings of those various systems. I would certainly expect this to be a matter of great interest, particularly in the more affordability-challenged provinces such as British Columbia and Ontario, so I don't know why you wouldn't get a buy-in from the provinces.
With regard to the specific intricacies, I'm probably not the person to answer directly.