Talking about whether a state of affairs that doesn't involve any decisions is a rational state of affairs is confusing. People do talk this way sometimes, but I generally understand them to be saying that it is symptomatic of irrationality in whoever made the decisions that led to that state of affairs.

What do you mean? Whose irrationality? Isn't it more straightforward (it's there among the 'virtues of rationality' no?) to just not call things 'rational' if they do not involve thinking?