I'm not some big conspiracy theorist, however, parity is a HUGE deal in the NFL. The Hawks have won the NFC for 2 straight years, and thinking that the NFL does not care about such things is naive. The explosion in the number of football fans all over the country is a direct result of parity...giving fans of crappy teams a little bit of hope goes a long way. Teams like the Patriots create a lot of dissatisfied football fans in other cities, as have the Seahawks in recent seasons. The Seahawks have made the playoffs in 9 of the last 12 years, and the SB in 3 of the last 10. And if you think there isn't a hint of bias in favor of east coast teams vs. west coast teams, then you're not paying attention.
Thinking that the NFL does nothing in an attempt to level the playing field is also naive. I don't give a crap about the byes, but when you look at the Hawks' schedule, it is obvious that the Hawks early strength of schedule was meant to put the Hawks in somewhat of a hole this year, while the Cards early strength of schedule was cream puff, meant to place them at the top of the NFCW going into the second half of the season. TeamRankings.com has the Cards' strength of schedule thus far ranked at #29. The Hawks are #8. The Cards have had 2 games so far against middle of the pack teams, the Rams and the Roethlisberger-less Steelers, and lost both of them. Their 6 wins have come against bottom of the pack teams. If you truly think parity doesn't come into play when these scheduling decisions are made, you're simply ignoring reality. And just so you know, I believe this would happen to any team that has appeared in 2 straight SB's...it's not an anti-Seahawks phenomenon.
I would also say that refs are somehow "instructed" to be a little "easier" on teams that are the underdogs. The statistics on opposing team penalties when playing against the Hawks are quite obviously skewed, with some level of bias being obvious. If you need opposing penalty details I can provide them for you, but I assume you're already aware of them. And thinking that Hawks' opponents decide not to commit penalties against them is ridiculous...this is an aspect of the game that is not simply turned off and on dependent on the opposition. I've seen dozens of blatant non-calls in the last season and a half. Unfortunately, this also leads to players knowing that they can get away with a lot more when playing against the Hawks.
The good news here is that I believe the Seahawks are capable of digging out of this hole, especially given the fact that the roles are now reversed...the Cards have a much tougher road in the second half of the season than do the Seahawks. The bad news for you is that sometimes reality is annoying.