Odhanan
Adventurer
I agree with all this. I agree with the spirit that inspired the catch-phrase too!(Great stuff)
What I'm saying is that I feel repeating the shorthand "the GM must make sure that everyone has fun" as a sort of mantra, a catch-phrase, without any sort of development or caveats, is not a good thing, because it can create really bad habits at some gaming tables. Especially when such gaming tables learn to run the game for the first time drinking from the Kool-Aid without knowing any better or thinking any further.
This, to me, is *not* a good shorthand.