According to virtually every statist drone in the Democrat party, the slaughter in Orlando is about the need for gun control. It's not about the killer's religion, his pledge of allegiance to ISIS, or a failed federal government that chose political correctness over action. Why he did what he did is irrelevant, guns are scary and 2nd Amendment rights are a major problem.
Since that's the case, the administration has decided it would be better for everyone if they just redacted certain uncomfortable segments of the shooter's 911 calls. They wouldn't want to subject people to such pleasantries.