@DevCat This seems to be an application of Clarke’s First Law:
When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong. - Arthur C. Clarke
Economists in general are notoriously bad at predicting things.
But I wonder if they're really no better or worse than other sciences, only they get called out on their bad predictions more than others because those predictions tend to be so relevant to our everyday lives?