Actually, in the post in question, I retreated into the fantasy world almost immediately, without being challenged.
The argument (addressing the question, "if you are too tired to do X in one way, why can you still do X in another way?") was that in the real world there are already 67 ways to throw someone. If you aren't able to do it in one way, there are 66 others which would probably use different muscles or the same muscles to different extents. So, in a fantasy world, where you aren't able to repeat a maneuver which does X because certain muscles are tired out and can no longer give you 100%, you can still do X in other ways which use different muscles or which only require the same muscles to give 80%.