Sat at that hole all day last year. Didn't see anyone chip into the pond from the right. Not sure one shot makes for a discussion about what is fair, scoring spreads, or what not.
Most of the pros I know understand a hole like that and like them -
if you play agressive and hit the green, eagle and birdie are yours.
if you play agressive but bail out right, the green sloping away makes for a delicate chip.
If you play conservative in front of the bunker, its a lot easier chip, but birdie may be harder.
If you play conservative and hit the fw bunker, it might be a lot harder to birdie, or not.
I think one thing missing in the argument about penalty vs strategy here is the pure distance involved.
ANGC is reachable in two by almost all good players. Eagle is always a possibility if you hit the green in two. The creek is proper because you can drop and still make five from about 40 yards.
Riv 10 is longer relative to getting on the green AND you really can only hit the left quarter of it. Thus, since the green doesn't open up for the drive to reach it there aren't as many eagle chances as you would expect. I also believe that the sand bunkers around the green, with their "half stroke penalty" (for typical tour pros with 45-50% up and down rates) keeps the scoring range tighter on Riv 10. If they miss, they have half a chance to still make birdie.
Not that it isn't a good strategic hole, because it is, but its not strategically designed for a wide spread. Turning the green to the tee would create a larger share of eagles, and since the safe shot would be coming over a bunker, probably raise the high end, too.
Net, net, scoring spread could probably be increased by both strategic design and degree of penalty. I have argued a few times that some forum members think there should always be more penalty to sand bunkers, but obviously, the stronger the penalty, the less the temptation. Just from tour pros I know, they would have to rate their chances of gaining a stroke at 66%/2 to 1 to even try a shot. Put a penalty of two strokes or stroke and distance on it, I suspect the temptation goes way down. It all works together and scoring spread is a result of lots of factors.