Getting the chance to do a skirmish as game mode instead of just as “waiting room” could be nice and somehow useful.
I’ve meet some cool players there that, instead to kill each others, talk to one another and just having fun.

Uhm... actually CH said clearly you can resurrect them with a stone called “Love Stone”, you can resurrect one of them at the time but you basically need to grind up that affection. The game got multiple endings so yes, one of them is surely “everyone is alive, all is good” clearly if you are up to grind enough.