Yes I actually think this is quite a serious issue in terms of creating a major disconnect between the level of the players and the kind of threat you're facing - no idea how they'll solve that one. Most likely they won't or it will be the tadpole adding effective levels of power to your party.
Going back to a question that was asked earlier - can I echo that. Is it still the case that any class can use scrolls? Because that feels like a clear issue that needs fixing (I could be convinced to allow an exception for Revivify)
