The abstract says “the Hirota people may have deformed their crania to… possibly aid in the long-distance trade of shellfish”.

A future equivalent could be deforming our crania in the form of invasive BCI to aid in different things.

The abstract also says “the Hirota people may have deformed their crania to preserve group identity”.

It’s also possible in the future that those who install invasive BCI could form a group identity.