“By default” does not imply “without discussion”. If there’s a certain campaign idea that requires some higher level of consistency, then a table can adopt that.
And I will point out that you invented the “authoritarian” designation, not me.
I don’t apologize for my belief that the DM should be, at best, a first among equals.
That might make sense if the DM player relationship was adversarial, not cooperative. I work under the assumption that everyone gets along, because if they don’t, I’m not in that group.
So much game tension can be alleviated by simply not playing with jerks and also not being a jerk.