It's pretty obvious that there were multiple contributing factors:
1. Snide twats selling thousands of fake tickets to LFC fans
2. Pathetic LFC followers climbing the fences and charging the turnstiles in an attempt to jib in for free
3. Shockingly poor organisation on the part of the stadium management
4. Heavy-handed over-reactions on the part of some of the police
None of those involved - LFC fans, UEFA, SdF stadium management or the Police - have any right to blame anyone else. This on them - they are each culpable for the part that they played.
Meanwhile the commercially-motivated UK media - for whom no depths are too low if it means they continue to milk the LFC cash cow - are totally complicit in their coverage. Spinelessly focusing on 3 and 4 whilst conveniently pretending 1 and 2 did not happen.
And so nothing ever changes. On today of all days that is an incredibly sad indictment on them all.