There is a lot of grumbling in Australia via the whip rule changes. Namely, your horse can get DQ'd if your jock does something wrong with the whip. It is the same here in Ontario. If a whipping infraction occurs in a race, any race, your horse can be set back - both parimutuelly and in terms of finish position, for the owners check.
But I was surfing today, and is it not similar in every other sport? If you know going in, why would you complain?
Check out the Serena Williams' situation last night at the US Open. Quite interesting.