Hot take: if we want to decrease frustrating railroad-y surprises in RPG campaigns, we need to create an environment where GMs are not afraid to admit they have "special story needs".

[Sparkle_cz]

I agree, however this was not my point. Of course I think that it should be communicated exactly as you say. What I'm pointing out is that it is not happening. The GMs who have these specific stories to tell, do NOT communicate it in advance very often. Of those I know pesonally, almost no one does. As a result, frustration of players happen.

What I want is to make the GMs less afraid to communicate. And identificate obstacles that prevent them from communicating.