Lafrenia

I don't see how using one or two healing potions from a bag that holds a significant amount completely ruins the quest from a gameplay logic and common sense perspective, unless it severely impacts the experience gained, which would be a significant loss.
However, it would be frustrating if the run succeeds, but the resurrection fails, but for me personally (I can't speak for Ment and others), in this scenario, it wouldn't be as important. It's a shame to lose a well-developed character in the prologue; I'm not sure I'll have the strength to create a new one (although an hour ago, I was certain I wouldn't, so there's some progress in acceptance), but he also didn't have time to level up, which slightly softens the blow.

I won't appeal to your empathy; 50% is really not that much.
I'm more concerned about another issue: regardless of our actions (successful/unsuccessful resurrections or lack thereof, creating or not creating new characters), the situation looks like we'll be dying in every fight, and this is with a party that's already close to the minimum level, even without firearms/magic and even without powerful monsters/fighters. Are there any ways to solve this problem?