Any animal abuse is wrong and I hit hard on the subject because I have seen it first hand it's incredibly disturbing. Any sort of abuse should be reported and stopped and they need lock him up. Same with all other crimes whose punishment is jail time.
And I'm all too aware of his status and I say any celebrity that thinks they're above the law should pay the consequences.
To most animal abuse isn't as bad as murder, but it's still a serious crime and he shouldn't have had such a short sentence and minimal punishment. I refuse to just brush situations off because I know they won't be punished because of fame.