Neanderthal ancestry is also apparently limited and so is the Neanderthal genome reconstructed thus far.
We have a complete genome.
These "archaic" features are not seen in archaic homo sapiens but are derived cranial features found in Neanderthals.
That's because Irhoud is the oldest h. sapiens. His as well as Iwo Eleru's featuers recapitulate Neanderthal features because they're primitive (i. e. not like homo sapiens).
Actually, it's highly likely Neanderthal ancestry got to Morocco, which is close to Spain (Neanderthal turf). Neanderthal ancestry is likely to have made it to Nigeria by 13k YBP.
Unlikely, West Africans have archaic ancestry. Neanderthals seem to be basal to their archaic ancestor
Neanderthals were behaviorally modern. Dry distilling birch tar is a modern behavior.
By definition they weren't.