I got a call too after I reported an entirely avoidable operational mishap (it took over an hour to find an available gas truck in IAD to top off the tank when the flight plan called for a longer flight at lower altitude) that caused more than an hour delay and resulted in half the plane to miss their connections, with some people having to wait 6-8 hours for the next available flight. I must say I was not very impressed by the lukewarm response on the phone that boiled down to "well, we have let the operations staff know about it, and we'll see what they can do about it". If they give me a call, I expect that they have a plan in place to avoid a long delay for an avoidable reason the next time around.