Feels like a missed opportunity not making it so on day 14 when the necromancer shows up you give her the blueberry potion to squish her minions
Nah, because the zombies aren't adventurers, and moreover they don't buy potions. It's decided by customer not headcount. Rules are rules, hence why despite sometimes having to give clean potions out the boss is alright with it, because you're following her rules.
Still feels like crap that she blames you for the vampire's death threats. I would like that addressed later on, some kind of audit.