La Bastida itself is a rather recent finding.
The invading group were warriors, but it must have been a relatively small group, as La Bastida was their only such settlement.
Some warrior group that had lost a battle somewhere and was on the run looking for a new place to stay.
Also IE groups could be able to travel along the Mediterranean shores.
The Usatovo 5.5 - 4.5 ka would have had quite an extensive trade network, part of the transport was probably done by rowing longboats.
4 ka is before the time of the larger Minoan vessels with sails. And till the bronze age collapse, 3.2 ka regular traffic by boat was confined to the eastern Mediterranean.
Somehow this whole story reminds me of the Moorish conquerors of Andalusia and Iberia who came all the way from Baghdad, where they had lost a battle against a competing dynasty.
If we were to rely just on archeology, where would we have traced the origins of the Moorish?
No, we need DNA.
The Argaric culture at least in Murcia, which is what I know, is a culture whose remains are everywhere, and there are many unexplored archaeological sites, a culture that has influenced the rest of the Iberian Peninsula, that is, not we are talking about minutiae, La Bastida is one more (impressive but one more).
Argaric culture has been known for a long time, as I say there are remains everywhere in Murcia at least, but I think it needs to be investigated more systematically.
What is new is that genetic tests are done on human remains, and someone says (university professors in an international study) that what we find there is the genetic mixture of the entire Iberian Peninsula, this is the new thing.
And if science says that all Iberians are Moors, well said, is it bad? The problem is when they tell you that you are a Moor without being only because of prejudice towards the Iberians.
North of Africa is 13 kilometers from the Iberian Peninsula, but of course science tells us that there is a great genetic difference, I would say of the most important in so few kilometers, I consider myself anti-racist and anti-prejudice and seeker of the truth of things first of all.
How are we not going to have a certain North African component if they are our neighbors? It is normal, nothing happens, now we are basically Europeans.