I never said it was harmful. I infact pointed out how many diets have some positive influences although they erroneously evaluate why that is.
Also: good < better < best.
Something can not be harmful but still negative relative to optimal.
For example: optimally, if you want to maximize protein intake (which is probably the second most important thing for an athlete after getting the appropriate calories), you would likely not be following Scheifele’s nonsense about not eating after a certain time...
I believe you can consume your needed protein and calories in a day, prior to 9 pm at night, without losing any benefit of smaller more regular consumption. Its not like he is cutting intake at 6pm. Mark being the keaner he is, is probably sleeping earlier than most, so his 9 pm might be most peoples 10 or 11pm.
He may have worded it incorrectly, by saying your body doesn’t burn calories while you sleep. But its that burning of calories that can have negative effects on your sleep and the more calories to burn the harder your body has to work, which can make for a bad sleep.
Not eating before a certain time before you go to bed to maintain a solid sleep is a smart and healthy practice supported by many top doctors. If you cannot get your calories in prior to 9 pm, start earlier.