Entitled? To what?
Entitled to a safe flight yes but to say you are entitled to no delays is plain stupidity. That you should expect no delay is realistic, but if the aircraft is tech then you are entitled to have someone make it safe for you to fly on, and to expect the delay to be as minimal as possible.
If you and your company always leave things so tight on trips then you can expect it to go wrong every now and then.
You and your ilk can pat themselves on the back when air fares rise up and the marginal routes close due lack of business.