Well you're not wrong actually. The Forest Service took over fire management for most of the country in the early 1900's (1910 I think?) and did what fire fighters do best - put fires out. Today we understand that just putting the fire out isn't always the best long term course of action though...
I will say that we are seeing hotter and drier fire seasons than before. While this isn't entirely a result of the lack of moisture, it definitely doesn't help.
It makes me wonder if the same thing is happening in other forest areas in the west.
On a side note, I am wondering how much of the lack of moisture is due to unintended consequences of cloud seeding in other areas. Every year I can remember there has been less and less snowfall, which is critical for forests health in the summer, even during the 90's El-Nino.