The mention of “Judaea” in 2.9 seems odd—Jerusalem is in Judaea so why would that be mentioned in a list of exotic countries? Plus the names near it are pretty much in one geographical area (modern Iraq and Turkey). My UBS Greek NT doesn’t give any alternate readings but an older Greek edition cites several conjectures by scholars. Apparently Tertullian has “Armenia” which would fit better in the context.
I always took “the list” to represent those areas that spoke different languages than the apostles in Galilee. It is my understanding that in those times Galilee was not part of the Roman province of Judea. So I think it makes sense.