THEN: #4.1 - A Fantastic season opener and Mytharc super-booster. #4.2 - Good, but uneven follow-up with maybe one too many ingredients. #4.3 - Long overdue detailing of the show's Mythology done with style. #4.4 - Monster-of-the-Week, but a great one. #4.5 - *Another* Monster-of-the-Week, albeit also a Comedy/Weird One, that can't stand repeated viewings.
NOW: Surely the series would get back to the Mytharc after a two-episode digression? Well... this *is* a really funny episode, with none of the pacing problems that plagued the previous one. However, at the time of writing, 721 votes have given this episode an average of 9.0 and 508 voters have even gone as far as given this the full 10/10! Now, the science of statistics says to us that those 508 people are letting the fanboy/girl inside them cloud their judgment. And there are arguments to support support that.
While extremely funny, thanks to Jensen Ackles's considerable comic talents, it does not mean that this is a flawless, ie. a 10/10 episode. There are several problems. The biggest one is that *three* Monster-of-the-Week episodes in a row is too much when there is a *literally* apocalyptic Mytharc running in the background. "But what about the bit where...?" someone may be asking. It. Is. Not. Enough. Again, we can see from the opening credits that neither Misha Collins nor Genevieve Cortese make an appearance, and can draw our conclusions considering this episode's weight in the big picture from there. Also, this is the second overtly comedic episode in a row - something that should *never* be done unless the main category of the show is Comedy. Also, a Comedy Episode should remain a Comedy Episode from start to finish - otherwise it is just *incoherent*.
Viewed as a single episode, this episode works well enough to be a good 7/10 (there really isn't anything truly special here), but when considered as a part of Season 4 - and the episode itself reminds the viewers that it *is* a part of Season 4, just not as meaningful as it should be - the rating goes to 6/10, which is ironic, since this is the 6th episode of the season. The next one, fortunately, is a return to both form and the Mytharc.