The title of the post said most talented roster, not who had the stats. The two are related but not the same.
"Most talented" is hard to define.
Is it physical characteristics? Well partially. Speed, strength, jumping and endurance are important. Height is not actually a physical "ability" but it can be a factor. So, let's say physical "characteristics" rather than physical "ability." Hand-eye coordination? Vision?
Is it learned skills? Skill to dribble, to shoot, to make pinpoint passes, to set up and execute a proper pick and roll, etc. These are skills that have been learned. (And can be improved from year to year)
A proper mix of physical ability and skill equals talent. But how do you measure the combination? About all you have are statistics and eyeball tests but both can create wrong impressions. Stats may not take into account a player's role on their team. Then, how do you decide between a player who has very solid stats across the board to one who has superlative stats in only one or two areas? Steals, blocked shots are very nice but they certainly don't tell the whole story on defense.
It's tough.