I see 3 main scenarios
1) as is
2) divisional winner in, but seed off record alone
3) doesn't matter if win division, get into playoffs on record alone
People are upset now, but if we had option 2, then the NEs of the world are mad that SD gets in with 8-8 still, or if you go to option 3, divisonal play is meaningless. You're going to piss off someone no matter what.
The packers got a little hosed this year, but I still don't think the system is too flawed. It's how the other 3 big leagues in the U.S. do things, and someone would have a legitimate gripe no matter what.