Too late to edit the above post.
This got me curious, a lot of us here have been against these construction practices you mentioned for decades - and now that the danger is realized; they blame the climate.
Even if they're right - what made them think it wise to build big tracts of homes on a spot that has been reduced to ash 4 times in 3 decades? Pure hubris.
I spoke with a friend who owns in the Malibu Canyon area - they had to sign documents acknowledging that they are aware of the fire danger before closing escrow. He also mentioned that fire insurance is about triple (if it's available) for the same reason. It's not a surprise that most homeowners in the canyons are either uber-rich locals with multiple homes, or transplants that have no idea that the former owner sold because last year the house almost burned, almost slid down the hill, and Ca & LA County taxes are insane.
Personally, we would never own in that area - even if I had $4,000,000 for a 2,0000sq ft house on less than an acre of dry tinder and neighbors very close on both sides just doesn't appeal.
Too many hazards - annual fires, mudslides, taxes, kids fucking in cars on your driveway, wannabe rally racers on the canyon roads tailgating behind you while a rental van full of tourists is in front driving 2 miles per hour because they're terrified --- oops; some of those are memories...
Anyway - if we hadn't grown up here, we'd probably leave.