The problem isn’t the wildfires. The problem is that PG&E is a monopoly and has no incentive to do literally any maintenance on their power lines because you have no other alternative.
So last year when their poorly-maintained lines sparked the fire that burnt down an entire town and killed actual people they were fined heavily. But then they declared bankruptcy so they wouldn’t have to pay the fine. Fast forward to today and PG&E still hasn’t done any maintenance (but they HAVE given their executives $11 million in bonuses) so to prevent more fires they’re just shutting off power to hundreds of thousands of people.
And it’s all legal. Because capitalism is a scam perpetuated by monopolists and syndicalists.
