Yes, the recent Pt Reyes fire involved some sudden oak death trees. But since this fungal disease seems to be spread artificially, mainly by livestock or people, along only the most popular trails in that case, it wasn't much of a factor back in the forest itself, which was still damp and healthy due to all the coastal fog. Rather, in that case, the issue was mostly just the natural burn cycle of the very dense pitchy stands of Bishop pine, and how that freak summer lightning storm got to them. What burnt was quite predictable - it was the portion of Bishop pine that didn't burn in the adjacent fire twenty years before. But that was very different from most of our recent Cal fires.
And again, for sake of explanation to out-of-state folks, a great deal of lower-elevation California brush more inland is what we classify as chaparral, and similarly is naturally and genetically engineered to burn at regular cycles of about 40 years of so. Since this brush is adjacent downhill from the beetle-affected mid-elevation pine forests above, in what is called the Transition Zone, you've got quite a cocktail for disaster. For millennia, native Americans thinned the brush using fire to keep meadows and trails open, and improve habitat for deer and certain plant food species. That all built up under modern fire suppression policy, to the point that when it now burns, it does so catastrophically. Add to that the problem of suburban sprawl into the city/brush interface, with all its roads and tentacles not only splitting up and disrupting the ecosystem, but risking far more opportunities for human fire accidents, and it's no wonder. But there again, not only does water flow toward money, so does development, and the majority of inland developers aren't much interested in anything other than what turns them a quick buck. For many years, I've only half-jokingly stated that the two main sources left of the Central Valley economy are developer bribes and orchard removal fees.