Lynxara
Nice post!!
I'm pretty sure Carranger had more interesting choreography at this point.
I've always felt Carranger had some really outstanding action choreography, though it comes out mostly in the mechanical sequences. The on-foot sequences are very well-shot but are played for comedy more frequently than the mecha fights. RV Robo is honestly one of my favorite Super Sentai robots.
In general I don't think action choreography is really a problem for OOO. The fights are based on good solid concepts. I think it's more that the direction is a bit weak, the scenes just aren't shot as well as they could be.
It doesn't seem to be a question of bad talent because OOO's head director appears to be Ryuta Tasaki, who's done good work throughout most of Heisei Rider (including W) and... well, Carranger.
The only conclusion I can come to is that Tasaki is a bit bored by the material and phoning it in. I kind of get that feeling from the scripts, too. The giant block of exposition in episode 2 isn't really Kobayashi's style.
If he's supposed to be a Big Bad--which I don't buy--then I agree with you.
Well, if you go by Faiz's example, he's not a big bad but definitely meant to be taken as an actual sinister presence. Kogami Foundation right now is behaving quite a bit like Smart Brain. (After a lobotomy. Ba-dum-tish!)
If I recall correctly, Smart Brain does sinister things throughout Faiz while also providing the hero with power-ups for reasons I honestly can't remember anymore. (I haven't seen Faiz in probably 5+ years.)
The only reason why Smart Brain isn't Faiz's big bad is that the company closes up shop in the final episodes, which I do remember because it felt very strange at the time. This is rectified in Paradise Lost, where Smart Brain (or perhaps more what it represents) is unquestionably a major villain.