[watwut]

"Disorder" is not value judgement. It is more about whether you can describe common symptoms and eventually steps to help (if possible).

The things you mention have derogative terms in culture. And focusing on sport instead of academic is not nearly at level of symptoms described here.

Frabkly, the discussion whether x is meaningful diagnoses makes sense only if you bother to read actual diagnosis - and surrounding text to see whether there are similar diagnoses nearby.