You go to an awful lot of trouble to come to the conclusion this was a poor race by King George standards.
I tend to look at it another way.
The 3rd is probably the most overrated chaser in training, Champion Court is no better than a good handicapper, Cue Card was never traveling and was always on his back foot after a horrendous jump at the first, Nicky Henderson most likely didn't even want to run Riverside Theatre and Barry made sure he never had a hard race when the chips were down, Kauto Stone as I said before the race should have gone to Sedgefield, the Giant Bolster was so out of place on the ground that he had AP looking down thinking there was something wrong with his undercarriage and what on earth Junior was doing there is beyond me.
You could defend the front 2 by saying they finished well ahead of the others. The gamble on Long Run going for home plenty soon enough paid off in the end but if he'd have been going any slower over the last 3 fences he'd have stopped which allowed Captain Chris (matched at 1000 and who hit 300 on the home turn) to grind his way into a challenging position and almost win the race.
The very fact that Dynaste, a mere novice, won the Feltham in a hack canter in a time 3.5 seconds faster than Long Run covered the same course and distance either makes him the next coming or we just witnessed a very poor King George that makes your figures look generous