This seems entirely appropriate. It would be consistent with the practice of news outlets sometimes not showing an ongoing police operation live.
What is the rationale for news outlets not showing an ongoing police operation? Is it so that the suspects / perpetrators can't use the external information against the police? If so, does that rationale applicable when it is the suspect / perpetrator broadcast their own available information? I don't know the background for these policies, so asking the first question non-rhetorically.
> [...] camera crews filmed the actions of the officers from the German apartments, and broadcast the images live on television. Thus, the terrorists were able to watch the police prepare to attack