The facet of the 2-4 that I hate, is that dunderdummy plays it when the opponent is as likely to run as pass; when they run - we usually get run over and give up huge chunks of yardage on the ground. The opponent will take what you give them - why attempt to pass for 15 yds, when dunderdummy is willing to concede 15 yds on the ground??
If in that either/or situation, dunderdummy plays two fat guys in the middle (the Jumbo) in an attempt to deal with the run - then he is essentially giving up any hope of generating pressure up the middle, the ends/LBs predictably fly upfield, and the QB gets a comfortable pocket.
Add to the fact that he sees nothing wrong with abandoning the middle of the field... it's just mind-numbing stupidity and painful to watch.
Given our personnel, the 3-3 has been the better option for several years now.