Wow, that is some wiring job.
I don't know how the owner could see if the wire was cutting into the trunk or not. As far as removal, what a nightmare, i think the damage to the tree would be quite considerable, i cant see any reason why they need every wire to be anchored into the ground just to reach a top branch.
Looks a bit like binding feet that the Japanese used to do long ago, not unless they are showing their wiring skills and don't worry a hoot about the poor tree
