(Edit: to be clear, these are just proposals the government is exploring at this point.)
> test whether their low-tax haven will survive leaving Canada.
The math already makes sense from a tax perspective. Alberta is a net contributor to the rest of the country, mainly due to resource royalties.
But to me, the question is whether that would still hold when it has to work out trade deals with two neighbouring countries, while small (pop. 5 million), and landlocked.