I think perhaps you are beginning to "flog a dead horse".
These types of delays happen to all companies at times, and regrettably on this occasion you were one of those to suffer.
Large organizations are not necessarily the most efficient organizations and getting information "down the chain" is always difficult. Its true you could have stayed in the hotel - but you would still have been delayed!
Maybe next time (as we regular travelers do) you could get lounge access so the airport experience can be a little more enjoyable? It surprising how quickly a delay passes with a cold beer.
Smala01