Your other link is research saying that statistic matters for fires. I can believe it does but your other graphs don't show fuel moisture as even slightly below average. Maybe the last two months of no rain indeed put fuel moisture well average. But, this is California - rainfall varies widely. LA has had many winters without rain, I grew up there.

I can't claim to climatological understanding of the situation. But I variety of narratives that don't make sense and impulse is to say that these are a response the LA fires being almost entirely a sudden and a unpredictable event, an effect not of trends but of the situation of global warming overall, something people simply don't want to admit.