Yeah, it's dumb, yeah it's goofy, but it knows it. Almost everyone in this movie is self-aware of the kind of tropes it is making fun of. It drags out its humor, to a degree that is almost irritating, but it works. It works because of the meta-humor, because of the acknowledgment of the insanity. That makes it that much more fun to watch and hilarious. It's pure laughs and clever writing all through.
