Although this doesn't appear to be an incident borne out of anti-gay hate, it is included here for the following reason.
Pro athletes carry a celebrity status with a lot of people, young and old. There are people out there who might see this and believe that it's ok to do the same to someone because an athlete did it. In many cases, words turn into actions. And on some level, if a person is capable of using a word like that "in the heat of the moment", we believe there are some underlying issues that person has.
We understand that people get upset. Things bother all of us. Sometimes we all feel out of control. We might use swear words that are inappropriate, at best. But most of us wouldn't think of looking at another person and using derogatory words to refer to someone's sexuality, skin color, a disability or anything else of a personal nature. That goes too far past inappropriate.