Seeing as the fans are video being let into the swamp by utd staff that would I guess make insurance null n void. Plus if you see the padlock on the gate, the insurance company would say the padlock isnt strong enough.
Plus the door they kicked in didnt look very strong either, infact the security of the whole site looked poor. Surprised they got insurance to be honest certainly for the statium.
When the insurance company come round my work place they check doors, windows, the type of locks we use etc.
If I was the swamp insurance I would be looking at the easy the fans got in. And wouldnt pay out