There is nothing shallow about how Daigo has been written :sly:
Sure there is. All there is to him is he's nice and good at everything.
I mean, I'm not saying the other characters are full of depth (Souji, outside of his focus episode, is probably the next most lacking character), and this IS Sentai. But I'm talking comparatively, and compared to, say, Amy, Utchy, Ian, or Nossan, Daigo's definitely just missing an oomph - maybe because all he IS is an oomph, and it starts looking like the writers are trying too hard after a while.
Don't misunderstand, I love the guy, but still.
I've yet to see any any "overhyped" Red that beats Akashi, whose sole point of appeal seems to be "looks conventionally masculine" and "isn't a 'screaming' Red". If Daigo had reached that level, then I would agree there was a problem. But I view Sentai as fun escapism that's a basic good vs evil battle with toys to sell, not as a serious and well-crafted story
So basically "it's okay that they don't try because I view it as something where they don't need to"?
I'm not saying it needs to be a serious, epic drama with running plotlines, but that's a pretty lackadaisical way to go about it too.