Could you point out any examples of this happening!! Allegiant has proved to be a dependable carrier landing Sanford Orlando Airport.
In order to stay in the air you can't be running half full flights every night. Allegiant seems to be able to handle the non-stops to Sanford from many small airports, not usually serviced by the bigger airlines, in an efficient manner. It am told many times, by passengers, it is nice to get to Florida in 1 to 2 hours and no stops or changes in the process. Upon landing they comment on how great it is to travel in the small airports, rather than the big airports. Allegiants load factor seems to be among the highest of all airlines and many have reported the prices save them money over landing MCO, which includes ground transportation.