Thank you, the last thing I meant to imply was a terrorist act.Unfortunately many posters (me included) misunderstood your initial post and then got stuck in about conflating a few delays with the arena bombing (I didn't btw).
When you clarified your point you were spot on. The owners were hugely lucky that the ducting falling didn't happen a few hours later as people could have been seriously injured or even killed. PR bullshit won't cut it now, they must get it fully finished before holding events.
But it was quite clear corners were been cut with this build, imagine the concert went ahead last night and part of the AC fell on the crowd, the consequences are simply scary to think about.
I hope all involved get together today and make the right decisions going forward, they seemed to get lucky last night thankfully, don't push that luck too far.