I wouldn't be surprised. I've seen some fights that starts with only two enemies, making it impossible to even get a refund from those. And there's plenty of Berserkers in this chapter too, to make refund even harder.
Edit: They even give you an unremovable permanent NP gain debuff later, to further add to this point
Honestly, not a fan of this. I don't care much about mob fights, so being unable to quickly clear them so I can move to boss fights is quite annoying.