I’m sure that there’ll be a huge announcement once EtoEto is released. Can’t wait for it, I’m making great progress through Textfugu right now and I’ll be done in a few months.
一人 and 二人 are simply exceptions with weird readings. From 三人 and on they use their usual readings. You can think of it like how we can say ‘alone’ and ‘pair’ in English, but we say 3 people and so on afterwards.
Alright, thanks for all the answers. I’ve been poking around Wanikani, and it has helped me with understanding how readings work and I feel that I’ll have no problem with the readings in the future.