I remember during the Malibu wildfire in the early 90s, a guy had built his house of concrete, with a terra cotta tile or metal roof. The firefighters took a good look at it and said, "We'll make a stand here". The aerial photos showed his home intact, surrounded by burned rubble.
I'm sure he wasn't lamenting not using shake shingles at all.
Sue
Which is how I've always said if I was going to build in in a fire zone, that is how I would do it - concrete, tile, fire shutters, and some sort of built in hose down system - picture a copper pipe running the lenght of the ridgeline of the house with auto water feed - turn it on, keeps the roof wet - ditto other areas