Should the Civil War anachronism in the pageantry of the Kentucky Derby be done away with?

I couldn't get over every single person in the stands singing a slave song, My Old Kentucky Home. Usually when they pan the stands you see a few peole singing but most of the crowd not singing. But there wasn't one person in the stands who didn't sing every word of a song with lyrics that have been obsolete for 100 years. What do you think and are Kentuckians relics form the past who still fly the Confederate flag?