Nope, because the cueball would be really jumping up due to a miscue. It was just in interesting shot and I posted it mainly because I always though you did need to strike the cueball above the equator in a jump. After reading the rules again, none of them say that, but you wold need to hit the ball with a downward motion of the cue or you can't drive it into the slate for a legal jump. There is confusion about striking the ball into the slate and "must be hit from above", those are not the same thing.
ok. sometimes i jump over the corner of a ball that way with full length cue. quite common