I was wondering, since we're out of book territory now, whether the producers had actually written in a failed resurrection attempt purely as a response to the online theories about Melisandre being at Castle Black at the same time as Snow dying. It would be a very good way to hammer home to the audience that yes, he is dead and we just tried to resurrect him and failed... so shut up because Jon is DEAD. By executing one of the leading theories on Jon on-screen, and failing with it, it would have largely put the issue to bed.
So, during the resurrection scene I was very much on the edge of my seat until his eyes opened. I thought it was executed really well, and I too am glad they brought it up front to episode 2 rather than dragging it out all season. I think dragging it out would have been far more "predictable".