That works pretty well solo, but now we're part of a team. Going into a thoughtless MurderMode will be bad in the mid-late game, since we'll stop coordinating with our team. If we ever get called in a Coroner or Trump, we'll need to work as a team. If we go full MurderMode, we won't be as useful to them.
Doing another moderate scenario if we don't hold back is useless and boring. If we do hold back then it makes sense, but if we don't it'll be a bore. And I feel that deferring to Sandra is the correct decision since she's our leader, and she should be the one to determine what form the training will take. At the same time, I really don't like the idea of us deferring to Sandra, her telling us to go all out, and just slaughtering a moderate scenario like we did last time. (And that's what a lot of the current votes are looking like)
I will admit that I have not. However, going from our previous near-freakouts, it won't be one that'll be hostile to our allies- it'll be one where we go maximum murder on our enemies (And/or crash the simulator)
Definitely don't want a real freakout like what could happen with Vae Victus though. A relatively minor one of 'Our ally got hurt, KILL'? That'd probably be fine. It wouldn't involve us going cataconic- see what happened with Koujirou. He got heavily damaged and we panicked a little but it wasn't a full-on freakout.
Plus, the world operates to a degree on anime logic rather than IRL logic. We've got a core that's helping us adjust. We won't have totally normal PTSD reactions.