I see that, but if there is rot in the trunk, the tree needs to be removed.Also, the "dead" part of the tree isn't the part on the lines. Full foliage on the lines.
I think there is some negligence here.
Not that I want or will pursue doing anything about it. It's more of a discussion about it and to vent some frustration.
But there are a ton of people that may want to. If the idea got on social media, look out.