The false dichotomys, generalization, fights and general grumpiness of everyone throughout this whole discussion (going back to the fall when people complained about the students coming late) is ridiculous. Pretty much everyone looks bad. So of course I'm going to add my opinion.
I like General Admission. If I want a good seat, I can choose to wait in line, as long as it takes, and I'll get a seat generally where I want. If my priorities lie elsewhere, such as drinking, studying, hooking up, or whatever, I can do that instead, but then I'll have to live with the consequences. Like most everything else in life, there is a trade off. Nearly everyone complaining about not being able to pregame and get into the seats they feel entitled to are just trying to have their cake and eat it too.
All the conversation about this is way overblown, IMO. It will work itself out, just like at every other school that has GA student sections. It might take a year or two of adjusting, but eventually people will figure out how to time their entrance into the stadium for their desired balance of morning partying and seat. The biggest difficulty will be getting large groups (I'm thinking 5-8 housemates, plus friends, out of towners, significant others, and other hangers-on) to all enter at once so to sit together. Groups will likely be smaller as getting a large group of drunk college students to all decide to walk to the game together is like herding cats.
Finally, it will be interesting to see what the student ticket scalping market is like. As time goes by in the morning, a student ticket is literally worth less and less. People will no longer rely on grabbing a ticket for cheap from some freshman girl puking next to a house on Hoover on her way to the game, just to get in.