Yup, this is what this series mostly accounts for, meaning there's a lot of stuff the main writer already used in older series like Changerion, Choujin Sentai Jetman, Kamen Rider Agito Kiva and Faiz, Cutie Honey the Live (the latter of which is in sorely need of a rewatch), Death Note etc. Etc. Stuff that my guess is that has been used here not because of any lack of ideas but because it's clear the main writer (my third favourite superhero writer as of now after W. M. Marston and Joye Murchison and my favourite modern/contemporary superhero writer hands down) simply wanted to make a clear statement on his past accomplishments as well as his personal experience concerning the Super Sentai franchise, like an underground metal band releasing early demos in a fan package not because of a cheap ca$hgrab but because they want to give the fans something while making a statement about their personal history (think of this as a toku equivalent of the 2014 Demo Collection by the de facto split-up for good german thrashers Paradox, for example). And in that sense it works flawlessly. The only real problem is the ending, unfortunately the last 6-7 episodes are not particularly interesting or well written but I blame the stupid Toei tendency of still releasing in the contemporary era fully blown 50-episodes series when it's clear they could get away with less episodes yet they don't do it for syndication reasons (Candy Candy anyone?). Still, if you're into Toshiki Inoue, his peculiar style of perfectly mixing orthodox, Classic with a capital C Shoujo writing, subtle social commentary that gets perfectly to the point, memorable fan service and psychedelic stuff a là Hideaki Anno/Kunihiko Ikuhara and translating it into tokusatsu form and you love his previous stuff you will like this one nonetheless, particularly because as the beforementioned demos it confirms some stuff it was previously only alluded but now it's clear in full (I'm talking about the Disney Princesses/Shoujo worship me and the Maestro share). Recommended to all Inoue fans like me and, if you don't like the style of the guy, just move on and watch something by some other author, nobody forces you to watch something written by a person whose style you don't like. I rave all the times about how I don't like Black Metal, I don't listen to Black Metal tout court end of the line.
P. S. This, as a fan package/early demos compilation of a Genius, it is STILL better, more authentically artistic and more thought-provoking (words I don't usually use or like, but in this case it is adequate) than ANY current american superhero live-action gargabe in existance, from all spectrum (including "decostructionist" stuff). I leave up to you to what to make of this statement.