I agree with the technique which you describe, as the only relatively safe way to fell that would be in pieces- preferably with a crane to lower them, given the lack of nearby trees to rigcfalling lines from.
Thay said, both the guy who felled it, and the guy who hired him (prolly paid in beer and consumed during the service) were both idjits risking life, home, (etc) to save money.
I also agreed with quicksandfarmer's comments about the end results if I had tried it the way the guy in the video did.
Someone else's comments about thecwisdom of building structures so close to a solitary tree left from a forested area also ring true.
To add to that, there is no way that those buildings weren't causing root compression and increasing the potential threat caused by that massive tree, so getting it out of there was a great idea, just not something I would've wanted to try.
BTW, I have an ironclad rule cast in reinforced concrete, resting on virgin bedrock: no cameras are allowed to be active while I am doing anything stupid, potentially dangerous, OR felling any trees.
It would be bad enough to get seriously hurt, killed, or cause massive damage and destruction, without having to watch, or allow my family and purported friends, to watch (and ride me unmercifully about it) it in perpetuity.
Egon,
Great video find, thanks for sharing it.