Respectfully, the DAN recommendations state that for mild illness "we recommend a clinical assessment by the family doctor or a Diving Medicine specialist after 10 days since recovery. The assessment should take into account the age of the diver, any condition identified as diving risk factors, vaccination status." What you wrote applies to those who experienced asymptomatic or paucisymptomatic cases, at least under the DAN rubric.
I'm not a medical professional, but one of the potential issues I see with the way DAN Europe categorizes the severity of illness seems pretty stringent, at least for the first two categories. For example, if someone has a fever they are automatically put into the "mild illness" category - which is fine - but then the recommendation is to have a clinical assessment. What if the person had a completely uncomplicated case that resolved very quickly but had a mild fever for a short period? Similarly, I recently had COVID and the only symptoms I experienced were very mild nasal congestion and an extremely mild and very sporadic cough. My symptoms resolved in about two days. Without exaggeration, just about every cold I've ever had was worse. But the DAN recommendations state I should have had a clinical assessment before returning to diving. If I get a cold with a cough, should I be going to the doctor to assess my fitness to dive? That seems a bit much.