While it can be annoying to lose a roll I would like to stress that more often than not skill checks aren't exactly barring people out of vital stuff. Winning one frequently just means receiving a small hint about something.
In other cases (i.e. the scene with the viper druid and the thielf child) the consequences are a bit more dire but it's also clear that the "bad" outcome is supposed to be the default one and managing to save the situation is supposed to be a fringe scenario.
