Bill Zebub
“It’s probably Matt Mercer’s fault.”
I mean, they're worse off than they would have been if they had made the check!
I think of it this way: the starting position of the PCs at the start of the module is "might learn the important info that will help them survive". After the failed check, their position is now "did not learn the info that will help them survive". That's a notable change in their circumstances.
Maybe a better way of looking at this scenario (or, at least, a way I prefer) is that the characters already either know or don't know the information. The roll is just to find out which it is. They aren't doing something that might change that state.
Therefore a failed roll changes the state from "the characters don't know the information, but the players don't know that" to "the character still don't know the information, but now the players do know that and can plan accordingly." Which, in my opinion, is an improvement.







