I don't see anything wrong with it, really it is not a lot different that killing a cow with a captive bolt pistol in a slaughterhouse. In this case, they just had to wait for the elk to wander up to the feeder directly under the tree stand then make a good throw with the spear - maybe just a little more sporting. Oh and the elk had decent antlers. Meat is meat, does it really matter how it is killed if the express purpose as he says is to obtain red meat??
I don't think it casts any more of a negative light on hunting than has already been cast.
Freaking Cool if you really want to know.
?Men in general judge more by the sense of sight than by the sense of touch, because everyone can see, but only a few can test by feeling. Everyone sees what you seem to be, few know what you really are, and those few do not dare take a stand against the general opinion.? Niccolo Machiavelli