I get your logic here, but this is a whole lot of speculating. AS IT STANDS, what you posted seems true. But, there is a hole in the logic. What happens if the Pup is your last ship? At this point are you only fighting to hurt your opponent's MOV? I doubt that will be the case. I'm holding off speculating as I'm sure the Pup will be worth some points. Maybe it will be just the six (cost of the card) or it might be the entire kit and caboodle, or maybe something in-between.
If the Pup's the last ship standing you still need to kill it to get full MoV, otherwise the game'll go to time and all your dead ships will count against your MoV. There are points in it, but they're yours, if that makes sense.