yet somehow refuse to accept that these are real victims, and that people died.

It is completely plausible that that part is completely real regardless of everything else. Discussing the possibilities of this event being allowed to happen and even made possible by the authorities does not mean that everyone thinks the casualties were faked. A staged event could easily have been planned to have real deaths.

A big part of this discussion is also about the response from the media, law enforcement, politicians and the general public. Talking about the inconsistencies and agenda pushing there also doesn't necessarily mean the people discussing those issues believe that nobody died.