Yes, these precipts seem to be common in the TV industry

Ms Jefferies stresses the guidelines are not trying to put boundaries on storytelling … She says - and “these guidelines are just to bring it even more in line with the best practices in the film and TV industry”.

And I can’t think of news stories that show this is a problem in terms of leaking a story.

So, why not have the same degree of safety and protocols in game development?