No, it is not.
Borne Far Away is a great card in concept that just doesn't end up working very well...it allows you to have a character in play and the dead pile as well.
It was intended to be that you would rotate stock characters (
Lorien Elf,
Dwarf Guard, etc.) with main companions, but because they did not specify a non-unique companion, you can end up having three copies of Aragorn in your dead pile and a copy in play.
Just make sure you don't go over nine companions!
-wtk