I mean… simplest answer is that there were 80-100+ MPH winds and no recent rain at all, and hyper-dry fuels. But, also, there was no water in the water infrastructure, and conveniently recent cancellation of the majority of insurance policies in the area, and… well, quite a few “worst case scenario and maximum negligence and incompetence” factors all lined up. What are the chances the LA fires were intentionally started? What are the chances it was foreign state sponsored sabotage or terrorism?