While I certainly do not condone the OP's response to your comment, there are many times in life when taking all the reasonable precautions of arriving to the airport early does not 100% guarantee that you will arrive at the airport in time. Not too long ago, we had a funeral on a Saturday locally and a wedding on Sunday out of town so we were on the last flight out Saturday night. The funeral ended earlier than we expected and it seemed we were going to arrive at the airport way earlier for our flight than we wanted (3 hours for a domestic flight when we usually arrive an hour and 15 minutes early) even with construction related closures on most of the major highways. A fatal accident on our route derailed that, and we cut it so close that we left the bags were going to check in our car. We wound up going through TSA with the clothes on our backs (thankfully it we were wearing dress clothes that could be worn to both occasions) and our personal items and got to the gate at ~T-15 and made our flight. If someone said to me, "you should have planned better", I would have asked them is it better to miss a wedding or a funeral or if it's appropriate to leave a funeral halfway through a prayer?

Point is, you can do everything right and still have things go haywire. You should not always assume that someone planned poorly or that there was a lesson to be learned as you have no idea what might be going on in someone's life that caused them to have things go haywire. Have a little grace for others.