Would it be possible for someone who was not supporting themselves that way? I.e. for someone with a 40 hr / week job?
My personal experience is that "outrunning" a poor diet is absolutely possible, and I kind of did it unintentionally. I started biking to work out of necessity. I wasn't planning to lose weight, but it happened. I had no weight loss ambitions or plans, but it was probably a good thing.
Shaq could easily dunk a basketball weighing 300lbs. You can't infer from that then that any person can weigh 300lbs and dunk a basketball.
People need to stop thinking about <10% body fat as the "athletic standard". Some players are super skinny, some players have more mass to them and use it to their advantage.
I do agree with regards to Shaq, the guy coasted in his talent later in his career and let himself go. Had he a better work ethic he could have been in the conversation for one of the greatest players ever.
In any case, Doncic got bullied and embarrassed by Mavs FO's comments about his weight and work ethic(complete lies to try and save face for their terrible and shady trade) so you can look forward to a slimmer Luka next season.
I was absolutely shredded and still ate stuff like katsu curry weekly