Despite my post kicking this off, I do disagree with you here. As @Stroller points out, it was a total miscarriage of justice conducted by the establishment: police, media and politicians in total collusion to criminalise and discredit victims, it is important that it is spoken about. Speaking about it about it for twenty plus is the only thing that lead to a semblance of justice.
But there is a time and a place, and a film made about another sports teams most incredible success is not the time really. And this doesn’t seem reated to the fight for justice, it just sounds like someone wanting to make excuses for why Arsenal won instead of Liverpool. Its also annoying because you can be sure the film will cover Hillsborough, he’s just trying to make an issue out of the trailer.