If I am an opposing fan, there are roughly 5-6 NFC teams that I would be more worried about facing.
Certainly the Rams. The 49ers look like they might be good but let's assume we don't know enough yet.
I certainly would rather face the Hawks than the Packers or the Eagles.
Honestly, even with Cousins, the Vikings seem like they would be more dangerous with their solid defense, great RB, and very good receivers. Even with the 1 loss.
The Cowboys look like they can put up points and play defense too. (And right now, the eye-test says the 49ers look better than us too.)
Seeing the Seahawks on my schedule would be a lot like seeing the Falcons. Some very good players on the team. A lot of great pieces. But some significant weaknesses you should be able to exploit. It would hardly be a slam dunk but it would also unlikely be a game you just chalked up as a loss. The chance of being blown out would be close to zero.
If I was facing a team in the NFC in the playoffs as an opposing team?
I would absolutely want to be facing the Seahawks vs some of the other teams. Sure they would have Wilson, who would be hard to stop, but I would understand that we wouldn't need to shut Wilson down because his own coaching staff would take care of that for us. Meanwhile, I could exploit that secondary all day, the OL would be easy to pressure, and the DL really doesn't get tremendous pressure vs some of the other NFC teams I could be facing.