Gizmodo faithfully: flaming industrial art.
They introduced it saying “Do you enjoy fire? Do you also enjoy very intricate Rube Goldberg machines? Of course you do.” Though a reader there exclaims:
It didn’t do anything. For it to be a true Rube Goldberg doesn’t it have to accomplish some task, like cracking an egg or pouring a glass of milk or something? Neat to watch, but make it do something!
Not that the dump truck actually accomplishes anything either, just that it looks cool.
(Note: the real connection here is that Cliffy introduced that video with “Everyone loves the idea of smashing fast-moving things into hard objects,” but got quickly shot down by somebody saying only guys like crashes, flames, and explosions.)