They don’t clearcut around the very tall ones as it’s not necessary, but around the lower ones that trees and brush mess with.
They’re also not allowed to trim trees or brush around neighborhood lines - so the lines get overgrown.
I live in California, and they (PG&E hired contractors) have trimmed heavily in my rural-ish neighborhood in the past year.
They are just WAAAAY behind. Either California gov’t environmental regs prevented it, or PG&E tried to save money and not do it, or a combination of the two.