The rune case has no "meta-decision". The player says "Maybe these runes will help us get unlost", and puts their dice pool together, and the declared action is resolved. Where is the alleged "meta"?
I mean, of course the player knows that the result of the declared action will effect the fiction. But the player in your game knows that your decision about the fiction will affect the result of the declared action. Why is one "meta" and the other not?
From wikipedia "In tabletop role-playing games, metagaming can refer to aspects of play that occur outside of a given game's fictional universe." Frequently used for metagame knowledge such as knowing that in D&D you need to use fire to stop a trolls regeneration, it can also refer to players changing the state of the fictional world through actions not taken by their character.
Oh, I must have missed that!? I have not recognised that at all!
I tought they repeatedly stated the character cannot determine the meaning of the rune, but the player can, and hence there is a difference? (This seem to strongly contradict the notion that the character determined the meaning of the runes, as the claim is they plain cannot do such a thing)
I may not have been clear because it wasn't exactly clear what the rules of the game allowed and how it was explained at the table. But I thought I referred to meta-points and tokens which are things spent by the player that has nothing to do with the in-world fiction or the character themselves. On the other hand pemerton doesn't seem to understand (accept?) what the word "meta" means in this context. I thought it was common verbiage.