>>304Clunky writing, mostly, in the case of Hazbin.
The overarching setting is also very basic, which isn't horrible, but certainly doesn't help it.
Bigger problem really is that the tone whips back and forth, going from a childlike disney fare to talking about pornos to wanton 'Pickle Rick' esque violence, with no throughline or care put in to the transition.
Helluva Boss suffers much the same, though to a lesser degree by large.
The greater issue is that Helluva Boss's characters are static, basic, and repetitive.
Pretty much all the big emotional episodes are the same. The characters are horrifically shallow, and considering this is a character-driven story, that's a major problem. Especially when your characters by large struggle to have any meaningful relation outside of their one big one in the cast. Blitz and Luna's fare is dreadfully shallow in comparison to his ordeal with the big bird, and that's to say nothing of the nonexistant relationship between Luna and Moxie. They functionally have nothing to say to one another.
Ironically for an indie studio, it's the kind of bland empty slop that just looks good you'd expect from your typical corporate entity.
Something made to appeal to the aesthetic and the storybeats that make people 'feel', but without the soul and construction behind it.