Yes, this sentence is fair only if this would be the same sentence that would be given to the average person that assaulted anther person. If an average 'Joe' would not receive these types of punishments then it would unfair for Kanye West to receive them just because he is consider a star.
Kanye Wests's sentence was fair because celebrities accept that their privacy is going to be up for grabs when they go into the limelight. They give up the right to privacy in exchange for the riches and attention they get as celebrities. They need to curb their anger and either ignore or allow photographers to take their pictures.
Too often,celebrities are allowed to slide with just a small fine or a few days in house arrest. But Kanye West is doing community service and probation. As well as paying restitution and anger management. The latter will probably help him to better himself as a human being in general. Paying restitution does seem a little extreme. The photographer is probably not blameless in this. Too often, the photographers become too bold and jump into the privacy of the people they are trying to photograph, and that is not very fair either. Perhaps West will find more suitable ways to express himself in such situations. Maybe other celebrities will learn from his example as well.
Yes, Kanye West's sentence for attacking a photographer was fair, because even though it was pretty light, it still is a significant penalty. That is a lot of anger management, and community service is not fun. That is actually an entire month of full-time community service. There were mitigating circumstances, because the photographer probably provoked him.