You are absolutely correct. As those two still exist in the present Gensokyo....That's just another mystery we can't be sure of.But really,I think it's entirely possible that the worst case could be Fujiwara no Mokou's existence completely vanishing from Gensokyo.......Interacting with them shall interfere with history itself.And yet the present Gensokyo has suffered no noticeable effects.However, she has already interfered numerous times,
