What would you like Norway to do? It's been more successful than other countries (generally speaking) insulating its economy from Oil. Would it be better to _not_ also try to drive adoption of clean energy?
My point is that reducing this to "Norwegians still buy cars and cars are bad" is reductive, and if people are going to buy cars, reaching high levels of electric car use is a good outcome.
Now there should also be focus on reducing car use period. But that doesn't mean it was a mistake to electrify transportation in the meantime.