I'm not sure where all this contention is coming from. We're all pretty much on the same side in that we all know what a bleeding stupid move this video shows. Do I wish he would get struck for his folly? No, although i admit it crossed my mind. But is that the point? nope, not to me.
Just to put things into perspective, here is a pic of the typical damage a large smasher can do when it spears a finger. The species that did this is not designed for spearing and only gets to about half the size of L. maculata (the species in the youtube clip) so you can only imagine the kind of damage a foot long spearer might do. warning: kinda graphic...
http://reefcentral.com/gallery/showp...t=1&thecat=500