Ignoring all the other issues. Why the on earth does Omega essentially only have three reoccurring cast members? This feels insane.
Despite its reputation, I always felt Orb suffered a lot from having a really small main cast, specially when you consider how little Naomi's coworkers contributed in most episodes. But at least one of the characters was an antagonist for Gai to play off of. A very important role to keep things moving.
Omega's pool of possible characters dynamics feel like their limited to a comedy duo act that's been stretched thin, with an occasional sobering appearance from a would-be-kaiju researcher who's less informed than the Ultra himself. When this show was first stretching it's legs I assumed we were just taking it slow until more characters were introduced. But no, this trio seems to be the entire main cast. On top of that few of the episodic characters really feel like they have much effort behind them.