The first point is well made. The second point is true legally, but I think what Goatwhiskers was trying to get across is that one may find oneself obliged by the circumstances to fire, and in delivering that legally justified stopping shot (meaning "as many discharges of the firearm as are necessary to end the threat"), you must factor in the reasonably high possibility of causing your attacker's death. And if you can't deal with that on the intellectual, the moral and (where applicable) the spiritual level, don't draw.
I once saw it stated in print as "Draw your gun, go to jail." By no means always, and the author made it clear there were exceptions, but I think he wanted to make it perfectly clear to the new CCW carrier just how grave the situation had to be before they should consider unholstering their firearm.