The only real argument against the HUNH that I really buy into is Coach Saban's point of "Is this what football was meant to be/Is this what we want football to be". To me football is a game that shouldn't be played at the breakneck pace that it is played today, it takes out much of the strategy that I find interesting, it creates a chaotic environment in which penalties are missed, and it generally simplifies the game to the point that it is nowhere near as interesting as I usually find it. It appears that we are losing this argument as a majority of people do like the 49-48 games.
As far as the player injury thing I agree with the general principle of more plays equals more injuries. A good way to fix that would be to change to NFL clock rules (this would help with the other problem of college football games taking 4-4.5 hours now). I agree with the others on here that there isn't much difference between long physical methodical drives and the approach of the HUNH teams, both lead to fatigue and therefore an increased risk of injury.
I'm kind of sick of hearing the argument that the HUNH is all smoke and mirrors and trickeration not real football. For starters I would point out that we have scored more touchdowns than I can remember over the last 4 years running the flea flicker. In my definition that is a trick play but I know I certainly didn't cry about it when Kenny Bell was hauling in 50+ yard touchdowns. The thing that makes football great is the variety of offensive and defensive approaches to the game. Some teams want to rely on strength and precise execution where sometimes want to rely on speed and forcing missed assignments on the defense through that speed, to me both systems are acceptable.
I don't know what people expect other programs to do though, it is really hard to effectively compete against Alabama running an offensive scheme similar to Alabama. The truth of the matter is we have an unstoppable recruiting machine, unlimited resources, a great defensive staff, and a multitiude of other advanatages that schools don't have. To respond to this they changed the game up and in my mind specifically devised a system to deal with the complex and massive defenses that were shutting down any pro set that they faced. I can't blame them. The Vietcong didn't fight us out in the open, the terrorists don't fight us out in the open, and there are tons of other examples of smaller/outresourced opponents resorting to "nontraditional" ideas in order to attempt to level the playing field with a foe they can't possibly defeat head on.
I don't think that the rules are going to change anytime soon, we need to adapt our strategy (like we all believe we are doing) to deal with these teams which are becoming increasingly prevalent or we will continue to struggle against these teams. I just think we are making too many excuses and complainign too much when in reality we aren't that far off from being able to stop these teams just like any other. We got caught in a transitionary period last year that was compounded with injuries. The defenses that we have had from 08-13 were very effective for their time as we won a ton of games and 3 national championships but a slightly different kind of defense is going to be required to repeat that success. I trust that Coach Saban and the rest of his staff WILL learn lessons and eventually return to the standard that we are used to on defense.