I didn't think the Sedin game was very good, and I didn't think his last game really showed anything (although obviously he was with linemates who were skating in molasses).
To me, he had 1 game in 6 where he looked like a quality NHL player.
And again, I'm not against keeping him ... if you play him with Horvat. But playing him with Prust and Cracknell is just utterly pointless.
I'd say he looked like a quality NHL scorer in that game, and looked like a 19 year old kid learning his way but holding his own in the other games (outside of Game 1-2). Given that this is his first camp and preseason, I think those are reasonable expectations and reasons to keep him on the team. Horvat did less in his preseason (though to be fair probably doesn't stay up without the injury in the last game of preseason) and the results of that early confidence were rewarded a few months later.