Somehow this guy did it twice without being decapitated.
From the short CBC article,
"This individual has no regard for their own life and limb. They wanted to do what they did, they did it swiftly, they did it with skill." (GM Kirby Brown
So they have the incident on camera. With that said, cameras are most effective as either a visible deterrent or an unseen recording device. If you know there are cameras present and dress appropriately, it's going to be damn hard to use the video evidence conclusively in court, unless you're dumb enough to let someone either see your face or record you getting back into your car.
The potential for injury or death with malicious actors targeting aerial lifts is huge, and I'm quite glad that none of the evil types seemed to have decided that it's a particularly good focus for their efforts. I do hope they catch the person(s) responsible for this one, because the action seems misguided at best unless their primary goal it to make it difficult and/or absurdly expensive to insure the lift; the environmental impact of cleaning up the mess, let alone rebuilding, has got to be more significant than multiple years of operation.