The evidence does indeed seem quite flimsy for such grand conclusions:
> It was unclear how their remains got deep into the cave system, however. There were no signs that predatorsbrought them into the chamber or that underground streams swept them there. So Berger’s team concluded that the bones had been deliberately placed
I watched the documentary on Netflix the narrow passageway that the bodies were found require climbing up an incline before reaching the chute. Also one of the children had a tool placed in it's hand. The idea that small brains can not be intelligent is wrong, how the brain is connected and shaped determines intelligence to a higher degree. Neanderthals had larger brain masses than modern humans but were less intelligent. And look at Bird brains have more than twice the neurons per unit mass as mammals making parrots/crows have the same number of neurons of as primates despite being much smaller and highly concentrated in the forebrain which is why they are able to make compound tools despite not having hands and more complex communication and social structures.
