It's hard to say how much it matters since the crew system is a bit different in the playoffs now than it was in recent years, but Coleman is the same official who called the BeastQuake playoff game and the heartbreaker in Atlanta in 2012. Both of those games were well officiated, IIRC.
It is the first time he's officiated a Seahawks game this season, but it's actually the 3rd Vikings game he's done, and apparently (based on the comments) Vikings fans are not at all happy to see him again.
He also did the infamous Tuck Rule game in 2002. Which was actually the correct call for a terrible, terrible rule.
