Shirley you jest ... the power company doesn’t have the expertise to string power lines that can hold up in the environment ... maybe they need to be fired and replaced.
Have you ever been in an auto accident ?
Did PG& E negligently not do proper maintenance on their overhead lines and negligently did not enforce proper tree trimming and vegetation management in their rights of way? If this can’t be proven, they are not liable. They are only liable in the case of gross negligence and willful misconduct.
More likely the State of California, the US Forest Service and US Park Service are mostly to blame. They have long been resistant to good forest, brush land and grassland management practices.