Yeah I was even on board with Arabella dying - even had that snarky remark ready, but thought "well I might as well try as it always fails anyway..."
And with Nettie it kinda makes more sense to intimidate her first telling her, you're gonna tear apart her beloved grove not just her, if she doesn't cut the crap (ofc killing her if it didn't work). As for swearing on anything - come on Nettie we're not in kindergarden!
