>>8033936That's because Hololive just grabs high profile artists that can deliver hype like Huke and Redjuice and just tell them to make a character to the specifications of the talent who have no eye for visual design and just turn it into an overdesigned clusterfuck. If you don't like your artist's final result you're fucked since it'd take too long to revise things or change the artist.
Nijisanji hires artists and lets them make whatever they want and then picks the best ones to give to their talents. They have a huge catalog of existing designs talents can choose from that they already bought the rights to.
They also have in-house riggers so while their 1.0 rigging isn't as good as Keffiy or Jujube it's at least consistent and doesn't leave anyone feeling shafted. Over time everyone gets rigging upgrades to bring them more in line with the good Holo rigs since the artists are on salary instead of freelancers with strict schedules.