I have to agree on that, extremes rarely make good predictions neither do they tend to be very futureproof.
As @michaelluchies pointed out, I believe that researchers which do not tend strongly into any directions probably provide the most honest insights.
Nevertheless, even if those might get closer and more accurate analysis since they're under a lighter bias, I don't believe that anyone gets any close and that everyone who has been right with their economic analysis until now, just had a lot of luck.