Fire season is more like hell on earth than paradise, unfortunately.
https://www.nrs.fs.fed.us/news/release/wui-interface-intermi...
https://www.nbcbayarea.com/investigations/new-images-of-pge-...
(That being said, yes, it would be better if power generation were decentralized, and California seems like the right place to do just that.)
That said, power lines do have a tendency to spark fires in remote areas on the windiest days, which is not ideal. But eliminating power lines still wouldn't eliminate brush fires.