Gethin Anthony (Renly) does a fantastic job in 'Copenhagen.' It's on Netflix and I definitely recommend checking it out, even if the description kinda freaks you out.
In the books, he's prepared to go on a very risky ranging, until talked out of it. I think the mission makes sense, especially after losing the woman he loved.
So the main complaint is that StanFans don't think their favorite character can keep up? I wanted him too, but putting him in the next episode doesn't hurt it to me. Stannis is cool and will get the respect he deserves.
I'm hoping that Tormund takes over Sigorn's role. I'd love to see him marry a babe, get more lines, and get a Giantsbane (Bearfucker?) sigil. Think it'd be dope.