There is honestly very little that needs to be said about this issue from a critical standpoint. I can dig deep into details all day, but that would kind of defeat the core trait that makes this issue fantastic.
IT'S FUN AS HELL.
Yes, I had concerns in the first few issues over the lack of depth and praised the previous issue for setting up a lot more of that depth, but this issue so fully embraces comedy and entertainment that it defies all other intentions. The comedy on this issue is on a whole other level over the previous six issues. It's chock full of clever continuity nods, utter absurdity, and an amazing reconstruction of comics from a bygone era. The artwork is so amazingly and excessively old school without falling into the same usual pitfalls; I'm just blown away. It even has a mock superhero PSA for god's sake! AND there's time to take a quick shot at Rob Liefeld!
In Conclusion: 5/5
For a standalone side story like this, a 100% dedication to comedy is perfectly acceptable, and verily encouraged, because this is amazing. I literally have nothing to say other than stretching out "THIS ISSUE WAS SO MUCH FUN" into a paragraph.