No, this was done because the guy was openly antagonistic towards his coworkers. Reuters chooses to cover stories in a certain way. That's the policy. This guy isn't even a reporter, he was a statistician. He was telling the reporters how to do their jobs. When he was told to not do that, he kept escalating, earning the ire of his co-workers.
It's not enough to just be good at your job, you have to get along with your coworkers as well. If 99% of your coworkers think a cop strangling a guy to death for 9 minutes is wrong, you kind of look like an asshat insisting that is acceptable, somehow.
Um, how is pointing out that cops kill too many black people "racist"? Now, you can make an argument that these incidents are rare, I guess... but they do happen and they are unacceptable.
How about the same treatment white people get? That seems reasonable.