>>103606685NijiEN boys were extremely sexual and lewd. Female fans of the JP branch would stop by EN for a quick fap, whenever they were feeling horny. They got a big overlap audience with JP.
But if you cut the NijiEN boys loose, you know what those girls would do? They would go back to watching their JP boys, and buying merch of their JP boys. I mean fuck, look how much EN declined over time. Those fans got enough masturbation and moved back into JP with people who speak their language.
But fans of the EN girls are different. The ONLY contact they had with Nijisanji was through the girls. They didn't care about JP, they were actually "EN fans", living in America or Canada. When their girls left, they left NIjisanji entirely. That is money falling out of Nijisanji's pocket.
When nodes overlap, you can prune them. I don't care if someone has 10,000 viewers, he can also be completely useless if his fandom is shared with 10 other people.
But if someone with 1000 viewers leaves, and takes their entire audience with them, that can be an even bigger loss.
In this case Nijisanji lost access to the entire global market when they lost the girls. That is a huge cost, and they don't even realize it. You'll never see the money you didn't make.