Hi! Author here. Yes - this is a stereotype and it is unfortunate it exists (to some extent I think the blame should be placed on the profession that doesn't speak up). Good economics, whether theoretical or empirical models, should allow for multiple outcomes. Then when it is tested with data, conclusions can be drawn on what is likely or not. Many economics questions have these conclusions - it's just a lot of theories are mentioned over again, without actually referencing the fact that a lot of research has already been done and demonstrated a theory is no longer appropriate.