These lists are (or should be) based off pure basketball performance and effectiveness. If someone really has a big size or athletic advantage, it will be reflected in them just being better at basketball and putting up better numbers. You don’t get bonus points for being stronger or taller for no reason. If there was a player that was somehow determined to be exactly as effective on the basketball court as Jokic but was doing it through sheer physicality rather than skill, then they’d just be tied. But obviously that’s a hypothetical since there is no objective way to determine a players effectiveness.