There is that possibility, and they also indicate a more settled lifestyle than the various horse nomad tribes.
The Emishi are a similar enigma. I would love to see some determined DNA testing of these and the cultures identified as Cimmerian, Scythian, Sarmatian, Alan etc., compared with modern Ossetians, Welsh, Magyars, etc.
And dare call the sacrosanct ethnicity of THE CHINESE into question????
WHAT KIND OF PERSON ARE YOU!!!???!!!???
LOL