The show does a lackluster job in this whole "Humanty is baaad but actually wait they aren't hope is the best!" theme, which is the exact same plot Urobuchi has written for three goddamn times now, by using shock value and a lazily written retort.
Yeah, this is something people defending Gaim need to realize. Is Gaim's writing impressive if you compare it strictly to other Rider shows? Sure, but this is also the franchise that has produced flaming train wrecks like Decade's second half, The Next, and the first half of Blade. Compared to that stuff, Urobuchi's ability to plot coherently has to be blowing people's
goddamn minds. Heisei Rider just isn't a franchise with very high writing standards, outside of a handful of exceptional shows (or in some cases, episodes).
But if you're really familiar with Urobuchi's prior work, and if you're comparing it primarily to that? Gaim is the same thing with a lot of the edges worn off to make it safe for the kiddies, and with certain inevitable plot arcs really drawn out to help fill out the year-long episode count. Given that Urobuchi otherwise writes VNs or much shorter TV series, Gaim's pacing in comparison feels glacial. Yeah, stuff is always happening (crossovers mostly excepted), but if it's stuff you've seen before, it feels like it's happening
v e r y s l o w l y.
This is not to say I think Gaim is a bad Rider show, personally. Rider's target audience is children ages 3-5 these days, so there's no reason for Toei to object to Urobuchi doing his usual thing. It's literally impossible for the target audience to have seen it before! That said, it is a little weird to be making an "end of adolescence, beginning of adulthood" type of story for that age bracket, but maybe Toei's hoping this show will be something they can profitably go back to on its 10th and 20th anniversaries.
Sometimes I think Gaim is meant as a final good-bye to the themes of the early Heisei Rider stuff, when the target audience was a bit older and general audiences would reliably tune in. It's becoming pretty apparent that Rider and Sentai's target age is now so young that shows need to be pretty simple and relatively light on story to be comprehensible to the kids. (And this need may, in fact, be affecting the way Gaim's story unfolds.) So if you hate Gaim, don't worry about it too much. I don't think Toei will be making more shows like this one anytime soon. And if you love Gaim, appreciate it while it's here.