AFAIK, the “out-of-africa” hypothesis isn’t so much based on skeleton findings.
It’s more based on some thoughts. One of them is that africa has a “high genetic variability” which they see as proof that humanity originated there, even though i doubt the soundness of that argument.
The second reason is some kind of racism: “if africans are really inferior beings, that must be because life originated there and emigrated and africans simply stayed behind in both space and development.” (not my thoughts)
i would say neither better nor worse, just different