Your delusion goes deeper than I thought. Not only do you believe in going completely against what we know from our own experiences and the very word of the GM herself, the only other possible path that you believe exists is also completely made up.
We are not going to walk up to Dandeer, turn Super Saiyan, and start telling her we're going to train her son whether she likes it or not. What the other option actually is is simply to ignore her, to not ask her for permission to train Jaron, and then simply train him. I have no idea what thought process led you to believe this would be anything else. I'll grow worried if that is what you think would "hit all her trauma points, remind her of her abuser, and trigger her PTSD", but I am giving you the benefit of the doubt and assuming that this is not what you think.