I have. I have also read
this- particularly section 4.2 on page 14.
The Smith proposed asset transfer is the most generous calculation of the most most generous interpretation of the applicable section. It is in no way an authoritative or binding view. It will not stand. Alberta can leave the CPP if it wants. If it does so it will likely, and justifiably, take an outsized (based on population) percentage of assets with it. But it will be no where near 54%.
Quebec didn't take any assets with them, they were separate from the beginning.