That guy is wasting too much time, the conveyor is running and isn't carrying but a few pieces at a time.
Now, if he put sldge head on there, and put a four way down below the table there, he could slam through that, and the pieces would fall onto a sub grade conveyor, he'd get more done that way. (redneck efficiency humor)
It does seem effective, and it would be nice to see some protection for the operator, but the whole setup is a matter of timing, and it did stall on a difficult piece, so that's not so bad. It would take some getting used to, but I bet a sensible, and alert operator would be in sync in maybe 30-60 minutes with it, and be comfortable. I'll wager that if you set it up right, you could run it off some mules or draft horses walking in a circle.