Nijisanji actually feels like it's done way more to innovate for the medium meanwhile Holoshit relies solely on FOTM crap and neutered content.
If you watch Niji 3D lives and compare them to Holo's ones, you'll find the former way more entertaining. Not rocket science if you have standards.
Brand loyalism is what Holofags know best and they're willing to watch a giant turd if they could if Yagoo's dickprint was on it.