SableWyvern
Hero
What does it matter if it's a low threshold? Is there something inherently superior about setting oneself a more difficult task, when the simpler task is providing the desired outcomes?To me, this seems an extremely low threshold. For many things that a player has their PC do, there is a very wide range of possible outcomes that would make sense.
In any case, while there are a wide range of possible outcomes, the number of likely outcomes is smaller. If wildly unlikely outcomes are the normal ones, then that wouldn't fit my definition of "consistently making sense". Although, in a group where trust has been established, the lack of consistency may itself be clue to the nature of reality in the game world. "Hmm, Sarah has shown she rules consistently, and is telling us that these strange rulings also make sense. Given that we trust her, we need to ask ourselves what's really going on here? What information are we missing?"
At the end of the day though, I go back to the part of my post you left out -- if the GM is striving to be consistent and the players all feel as if the GM is being consistent, what else could possible matter? What is achieved by saying, "But you can't prove it's consistent"?