You couldn't get an honest report on Hillsboro' 25 years ago because of the political and media pressure to absolve the police of any blame. And you wont get an honest report now because of the political and media pressure to absolve supporters* of any blame.
All police forces, all clubs and all supporters at the time accepted overcrowding, poor stadiums, violence, trying to get in without tickets. The police had the attitude that all supporters were hooligans and treated them that way. Supporters were fed up of police treating them like animals, so paid no attention to their attempts at crowd control and the clubs just didn't give a shit. the more people in the ground the better. A disaster was going to happen (again) It was just a case of where and when.
The taylor report addressed all these issues and has turned it all round. At the time we thought it heavy handed. But it changed everyones attitude and we are now at the point where some tweaks could be made. e.g. safe standing.
* I'm not talking about the supporters that were crushed. They were in the unfortunate position of getting in early and taking their place.