This is not due to price controls. California does not have much price controls on insurance, and I doubt there are any on commercial apartment buildings. This is climate change.
If you have to apply for a price hike, and it can be modified or refused, that's a form of price controls. And climate change isn't causing PG&E to be worthless idiots; they've always been that. The change is in the climate of the courts; they're now being held responsible.
Reading the article is a superpower.