We're not playing a hand at the table though, we're identifying a high hand. If I have a high hand bonus at a home game, and someone flops four of a kind on the flop, but the hand improves on the turn or river, we don't write down what they hit on the flop.
So for this, they're saying you must flop your high hand. Not "A" high hand. Consequently, if your hand improves on the turn or river, you flopped "a" high hand, but not your high hand (you turned or rivered your high hand) and are no longer eligible for high hand bonus.
It seems semantical, but I don't quite understand the uproar from everyone. If this does not somehow end up as a win for the chino, then whats the big deal? Just means more from high hand goes to hold em and such right? So someone is gonna be complaining on one side or the other. Now I know nothing about chinos, so if this does somehow earn them more money, then shame on them.