you're trivializing it with the hologram crack.
If the investigating body does as they said - and assign zero blame for any police failures - there will be CT talk. Following standard procedure would have prevented that target-rich environment. And typically deviations from standard procedure are noted and analyzed. When ignored, a shadow of doube is cast on the credibility of the investigative body.
Then, people start to wonder why the feds would change policy which allowed it to happen, and why another federal group refused to investigate it, even as the victims' families begged. Sound familiar?
*that* is why people will yell inside job. The groups covering each others' asses - at the very least cause for demotion or firing. Yet some folks feel better making cracks about people who ask common sense questions.