That's irrelevant.

Our federal taxes are paid as individuals, individual citizens or companies, not as some aggregate by province. "Alberta" doesn't exist from a tax collection perspective, and even if the Feds magically vanished overnight, that money would not get routed to the provincial government to help balance the provincial budget. It would be in YOUR jeans, and MY jeans, and we could balance our household budgets better, but the province?

They would have the same problem they do now.  Well, except the money they RECEIVE from the government in the Health and Social transfers would vanish, so their job of balancing the provincial budget would get even harder.