I think the argument that "it COULD happen if not done responsibly" while knowing that pic is of a rat that has been eating the snake for days, is along the lines of "you COULD get hit by a car if you walk across the freeway".
The pic in the OP's post simply has less to do with the action of feeding live, and more to do with being absolutely absent minded for a long time lol. If everyone was as irresponsible and absent minded as that, let's walk across the freeway tomorrow!