From the article/link above:
"The trick, then, is to slowly recondition a patient’s nervous system through careful exercises, without triggering a debilitating crash. On Putrino’s team, a strength and conditioning coach devises workouts to slowly get patients accustomed to a higher heart rate. A nutritionist fashions personalized meal plans to compensate for any dietary deficiencies. A neuropsychologist—Gudrun Lange, who has long worked with
ME/CFS patients and is helping the group pro bono—uses relaxation and somatic-awareness techniques to help long-haulers manage their feelings about their condition'.
Why don't they follow what experienced ME specialists advise for their patients and avoid exercise? They're just spreading ignorance.