Flip Flappers' plot would have been fine if it was as standard as something like Precure's.
Here's all it needed to be: Evil dudes want the fragments, Papika and Cocona gotta get them before they do. At first glance, that's what it is.
But then you have the creepy cryptic-nature of these villains, the rivalry with Yayaka, this Cocona/Mimi psychological thing, whatever the heck is up with Dr. Salt, and the whole thing ends up being a mess!
In something like Smile Precure, it's: Bad guys want bad energy, they get bad energy, and girls stop them from hurting people. Their goal is to resurrect their evil king, and the majority of the foreshadowing is just a literal clock that ticks to his arrival every episode. That's it.
Narrative-wise as a whole, the story wasn't really that strong. But do you know what the show as a whole was? FUN.
I had fun with the episodic antics of the characters, as repetitive as the show was. The villains were fun because they hammed it up and acted like jackasses. None of it felt rushed as the show was 50 episodes.
I wanted Flip Flappers to follow a similar structure and with every passing episode I got more and more nervous of this outcome as I loved all the fun adventures in Pure Illusion. That's not to say I wanted it to have no story at all, but this is a clear example of sloppy build-up and sloppy execution.
I can't for the life of me think of an anime that went middle of the road with episodic and narrative structured shows when the show is only 12 episodes. A side just has to be picked otherwise the show will only turn out as a mess.