Good for GDP, good for the TSX, good for RRSP's, good for the dollar, good for importers, good for tax revenue, good for equalization payments. Every Canadian has been invested in oil because it helped government revenues. If you don't like oil that's fine, but saying it hasn't been good for our economy is just delusional nonsense.
Saying our economy and oil exports were so good and it make the dollar go up so it hurt some sectors like manufacturing & other exporters is fine, but the fact is it helped our economy overall. The dollar goes up because our economy is seen as more desirable to invest than the US economy. The price of oil made our dollar go up because we make a lot of money off oil exports while the US economy was in the tank. Spin it anyway you want, those are the cold hard facts. But they don't agree with your ideology, so keep spinning away.
https://hillnotes.ca/2018/09/26/the-canadian-dollar-what-determines-the-exchange-rate/
Some people made more money. Some people didn't. I've made far more money since the pandemic started than ever before. I guess that means everyone did.
We made money off of oil at the time. In the long run, it cost us jobs and hollowed out other sectors due to an overinflated dollar. Those are also facts that can't be argued with.
As for the cleanup costs - they've been estimated at anywhere from $50 to $260B, and could take up to 2800 years (yes, you read that right). Alberta is responsible for a (far) larger total share, never mind per capita, of Canada's greenhgouse gases than the next highest Ontario.