the spirit lynch was dumb yes but you also find ekko's claim about having no abilities aside from a one shot and after he randomly pushes a lynch on YTW and someone miraculously becomes the WQ who is kurumi's evil form believable.
It was impossible for Ekko to know Yo was Kurumi btw so I don't know why this idea is still pushed
The white queen showing up is not from some master plan where Ekko pinpointed yo as kurumi it's simply a consequence from Yo flipping as kurumi. Just like Greedling from the FMA game.