You must have missed the CNN segment two days later after the misunderstanding was confirmed to be untrueOr within 24/48 hours, everyone who originally covered the story realized the Colorado Rockies mascot was named Dinger and that's who the poor fan was yelling at.
It was a Black Florida Marlins player that made the shocking accusation, and the Colorado Rockies rushed out an apology to the fans and media. So the immediate coverage was arguably "news."
The only narrative I saw two days after the incident was a cautionary tale about rushing to judgement. And "Dinger" made it vaguely comedic. Real face palm stuff.
If you can find a legitimate news source that continued to promote the story of a racist Colorado Rockies fan, I'd love to see it.