For me, the discussion about table power dynamics is to get to this starting point -- I do not think that it's as widely accepted as you seem to think, here. There's a strong contingent of players that subscribe to the idea that the GM does, by right, have absolute authority. This then makes moving to a discussion based on the concept that RPGs involve collective agreement on shared fiction quite difficult.
Maybe we've seen how early 2000s Forge-ism damaged campaigns and even destroyed play groups, and don't want to give it an inch lest it take a mile.
