Minerva's had her tail cut off a bazillion times, as was noted earlier in this thread. And she'd just kidnapped and was currently holding Diana's close friend at an undisclosed location, using monster to torture said friend and put her in a coma (quite possibly killing her). She'd also just used the monster to kill a fuckton of people. (Not to mention the whole story arc is kind of about Diana kind of losing it)

And it could well have been bluffing. We'll never know if Diana went that far.

If I was Diana? It would be a hell of a lot worse than losing a tail (and cats have lost tails and come out of it not paralyzed so I don't really see the significance of the tail being part of the spine? It hurts a lot. Boohoo. A lot of people are dead or worse thanks to this woman. That hurts a hell of a lot more)

But, hey, you want strawmen reasons to hate Diana, go ahead.

And the Genocide arc will be over in two issues.

Not touching the Superbuddies thing. Pretty much everyone was OOC in that mini.