He looks like he's too thin for that coat but it's not totally an eyesore.
King also looks surprised at what he said. It is possible there is another way to revive Elaine but why would Ban have to leave the Sins if there was another way besides killing Meliodas?
I was hoping the anime would lead to more people discussing the series but it unfortunately hasn't. There are too many anime/manga fans on the internet who won't give anything a chance if it doesn't have Goku or Naruto or Ichigo in it. The Vs. section here makes that quite obvious.