These aren’t “forests” like in other parts of the West so much as cliffs covered in dry, scrubby brush. I’m pessimistic that they could be systematically cleared or burned in a controlled way.
Burning in a dense residential area…no. Draconian clearing of all trees and brush except for selective fire-aware landscaping…yes, but you are paying significant money to make the residential area look uglier (in some eyes, it’s just a High Desert aesthetic for others), a hard sell.
Similar climates and geographies both either have the issue or manage it better.
Greece is a good example of also not managing this properly with its own regular massive fires, while national parks around Cape Town and other parts of South Africa do regular controlled burns in very rocky, hill-y terrain.