I, like you, hate to see the Bills lose in any scenario. A loss is especially painful when the game was very winnable and when it was influenced by questionable officiating. But in the end, these are the ups and downs of NFL football, as we Bills fans are well aware.
They lost a game that, 9 times out of 10, they would win. Just like last week against the Pats they won a game that, 9 times out of 10, they lose. (Maybe 15 times out of 16 is a more appropriate ratio?) Equally fitting, the Bengals break their losing streak to Bills, just as the Bills broke theirs with New England. Parity is alive and well in the NFL, and that cuts both ways.
In any case, the Bills deserved to lose. They have been playing too soft on Defense and are becoming too predictable on Offense. They wondered how they would handle "prosperity" and the answer so far is ... not well. They certainly have plenty of things to address this week as they prepare for Philadelphia.
The media reaction has been predictable, if not excusable. I have already seen a few articles claiming the Bills' bubble has burst. The Eagles, despite being 1-3 and playing on the road, are 3-point favorites to win this Sunday. No respect. But that's fine. Now that balance has returned to the NFL, the Bills can reclaim their place as the underdog. And I think that mentality suits them just fine.