re: What percentage of Georgia fans honestly think that we should be in the playoffs?

No, based on the criteria that the committee apparently applies:
It's the 4 best teams weighted with conference championships of the 5 major conferences.
Basically, a conference non-champion must have a better record than a conference champion.
So for instance, if Texas had 2 losses then we might have gotten in over FSU since they lost their star QB to injury and apparently the committee wasn't impressed with the capability of their backup QB's especially when the #2 backup sustained a concussion in FSU's gave vs Florida.