That would require examining each case. Overall, though, Canada's electric grid is in good shape. The issue is how well-designed is it for the future. Yes, Ontario has made significant investments, but so has Quebec. New Brunswick has done a lot as well. Everywhere has. Generally, Canada's electric utilities have kept their grids in good condition, even though those grids are hard to maintain in some cases. Saskatchewan is one such place: it has more polls than customers. That's true.
Situations like that are challenging, but the electric utilities have worked to keep their infrastructure healthy.