Its remarkable when you think about it. Clusterfucks of this nature usually have all sorts of factors contributing to them, even when - as is so often the case with politics - genuinely malignant personalities are involved. Bad timing, unintended consequences, even just plain old bad luck; they can all play roles in this kind of implosion. Not this time. This time, it really is down to the actions of one person. One utterly selfish, ruthlessly self-absorbed narcissist, whose first last and only priority was self-promotion. It's actually impressive in its way. An entire political party basically destroyed thanks to the behavior of a single toxic, self-regarding twit. (And the naive children who were dumb enough to place her in that position of power to begin with, one supposes.)
Egos this grotesquely out of control are generally difficult to hide. Didn't the Greens have any prior warning at all as to what sort a snake they were promoting to lead them? If so, I guess the blame can be spread a bit more at that.
Edit: Just to make it clear, I'm talking about Paul, not May.