My take:
There are a lot of people that really, really, really do not like our QB situation nor do they think our tackles have gotten significantly better. Edwards may surprise this season, but he's held in very low esteem by people around the league. (They can and should discount to some degree what he did in pre-season against vanilla defenses and take a wait-and-see attitude. Although the offense doesn't look like a fustercluck like it did under Schonert/Van Pelt, Edwards has not figured it out until proven otherwise.) The bookends at OT were not improved (they may actually be worse without Butler) and with a brittle QB like Edwards that's not a good thing at all. The Bills aren't getting any respect in general because people have watched them in past years and can't understand how big blaring weaknesses, painted in orange, decked with flashing lights, were not really addressed this off-season. The fans are going to say these holes will be filled by coaching, and they may be right, but the talking heads are looking at the players and still see the same voids.