clearstream
(He, Him)
It's interesting to interrogate this. We generally want an opinionated narrative. Participants say things that follow. Not just any words are spoken: attention and intention are desired.Fair dice rolled in the open are perfectly trustworthy. The DM is human, and therefore fallible and potentially biased and/or adversarial.
As an example, a principle in DW is expressly that GM has an agenda: they are biased. They are adversarial. That is given them as a job to do. That may be at odds with alternative ideas of a neutral referee... but I think true neutrality has seldom or never been advocated in broader RPG.
Everything on either side of the fork in the road can be and is formed with intent. Therefore why differentiate the fork itself? What specifically does arbitrariness at that inflection point do for play?