Did you read the article? Holmes said ASU asked him to attack Bentley for being a racist, but he said no because he doesn't feel like this is a race issue. He even says there's some stuff that needs to be investigated.
And this is why more and more people are becoming "immune" to the race card being used. It's like the boy who cried wolf. At some point people just grow tired of it and when there's actually an incident it falls on deaf ears.
I think we are in a day and time where race is not an issue. Everyone now has an equal shot at life. I think that is why the race card is less effective.