You have a very low bar for classifying someone as an ‘economist’. I see why that’s the case as it does help your narrative but does not really lend much strength to your argument in my view.
Just saying it doesn't count is a bit weak because that is saying training in a certain discipline and graduating in it has no meaning or skill transfer of relevance.
But I guess your point is to make sure that economists don't have any successes, not some deeper introspection into whether the study of economics can help in being successful.