Agree with all of this - our rucking was non-existent. Also agree on your choice of pivotal moment, although I can remember thinking throughout the game at regular 2 minute intervals whenever we threw away possession that "we're doing everything we can to lose this game". So in that sense there were so many pivotal moments. Worcester didn't win that game - we served it up for them and then when they left it to go cold we reheated it for them and force-fed the win to them.
That was strange... We seemed to hardly compete at any of the rucks or lineouts.