Hawaiian Electric says power lines were shut off hours before wildfire

The videos of what appear to be live lines on the ground writhing and sparking may tend to complicate this defense.

I wonder how many hacked up "home power" systems might've been backfeeding into power lines? Could the electric company have actually shut of their feeders and still failed to de-energize big portions of the grid? Do people with local power there manage their own transfer switches or is that power company property marked "don't touch"?