I personally have been stuck in an RJ in Jackson MS for 4 hours. Here is a lady that claims 9 hours in Austin: Passengers Sue American, Saying “We Were Imprisoned Against Our Will”

Are you saying that they were all TSA's fault. Do you really want me to google the DTW NW flight that started this mess. Yes there are extenuating circumstances but yes airline have also made some very stupid choices when faced with delays.

I agree the regulation makes cancelations more likely but if I want to get off an airplane, that is just sitting on the ramp, after a reasonable amount of time, I should have that option.