That's been a known problem for a LONG while. The Eco-Nazis (usually hard core Leftists) have gotten laws passed the prohibit homeowners from clearing scrub brush and plant debris from their properties. This is a major cause of the extensive damage that these fires do. Common sense left California a long while ago.
The biggest issue is that the EcoNazi's are compounding a problem that humans started 100+ years ago. We thought (think) that THERE CAN BE NO FIRES, and set about with CDF, the Forrest Service, etc,
managing our forrests. The natural order of things, other than man-made fires, is that..........the forrests burn, every year. But, before the interference of humans, they were low level grass fires that essentially cleaned the floor of the forrest(s) of debris.
We, in our infinite wisdom, have stopped that. Now the forrests have an overabundance of under growth. The normal cycle of under growth burning from natural causes has been broken, and we are paying the price.