What is mystifying them is that the meteor that the arrowhead was made from was not a locally found meteor, but one that fell in an entirely different region.
They seem to have forgotten (or maybe just the author didn’t know) that this particular region (the Baltic) was already connected to everywhere else in Europe by the amber trade networks.
Thanks!
https://www.youtube.com/watch?v=3Qgt1prZPEQ
https://www.youtube.com/@balticempire7244/videos