I'd never heard of this tragedy until seeing this film but it certainly has compelling information to support the idea that a cover up took place after an intentional fire. It's very emotional at times, mainly in the first episode as they detail the event. Truly haunting. In modern times, we wouldn't find a park that has such a death trap and no sprinkler system. Some could say it was an accident waiting to happen. But if this truly had been an accident, it would have been properly investigated. So right away we can see something was amiss. Imagine the scene of 7 deaths being completely cleared on day 2. That's unheard of. Unfortunatly, that level of corruption is still around today but most countries have better regulations so there can never be such a tragedy.
The film is well pieced together and may seem long to someone who doesn't appreciate that the filmmaker is attempting to focus on the emotion and authenticity of each participant as well as etch the true horror of this event into the viewers mind. I think they took the right approach, you can not rush such an in-depth look at this shocking set of circumstances.