Yeah that was pretty funny
I really like this episode. I'm sort of surprised they ended the fire guys story so quickly, but I guess he was just a pawn to make Dexter figure out what he did while he was on the table.
Also, if they planned on making this season the last one and had gone through with that, that would have been pretty shitty. They've barely touched on the whole "Dexter is really the bay harbor butcher" story line and to wrap that up in only a couple episodes would be a great disservice. In very glad they will sort of dive in with these last two, I'm sure leaving us with a nice big cliffhanger, to let it all flesh out next season in some much more grand way.