I think it is pretty easy to grasp from immersionist perspective. Succeed at the goals of the character. Those goals might be stupid or counterproductive. That is fine. I can still just inhabit the character and make decision from their POV, the player and character decision spaces remain integrated.
But yeah, like it has been pointed out, meta decisions kinda are weird in this regard, and consequently I am not a huge fan of RPGs that contain a lot of such. Because then by necessity it is not the character making the decisions, so it is rather weird if those decisions are still motivated by the character's motivations. But most games with such do not even seem to recognise this contradiction and do not explain on what basis such decisions should be made.