After the London bombings in 2005, take up of counselling and support for the survivors of the bombing a was very low. Even then victims didn't feel they could take up the support.
Blooming stoicism has a lot to answer for. I was in London and used the tube, was very close to the Edgware Road bomb, same time, different line. It affected many of us for a long time, and the 10 year anniversary was extremely emotional.
I can't imagine what 27 years of being blamed and vilified, having memories of those who died tainted by lies would do.
Whatever society does to make it up to the victims of Hilsborough is never, ever going to be enough.