Jesus, that was a long read. Took my entire morning. Very fun one though. Can't wait for Episode 3 : Nuxgie Strike Back.
And about Coco/Kson, what have been said about her magic of shitposting idol-bullying dragon has gone is correct; major part of her appeal is how she mess with others and obviously she can't do that alone - and she know that very well. She's trying to gather her new family ever since she debut her new body, so give it sometime I'm sure the ball will get rolling again. Hell, the collabs with Pikamee have been a blast. And the one with Guutara/Rika was very comfy and cute as well.
About she doesn't appeal to EoP fans anymore, wdym? She has always been like this. Hell, she make more English only stream more than before since she collab with EN vtubers like Pikamee and Vshojo. Not sure what you come to that conclusion. Which remind me of a clip made by a long time fan about this exact topic.