>>55397204They don't. Pokemon obtained from Orre don't have their met location tracked, so it says "Obtained in a trade." If they're transferred to gen 4+ it then says "Met in a distant land", which is also the met location displayed if you trade a Pokemon from a GBA game into an Orre game.
Also for the record RS only have most Hoenn met locations recorded, FRLG don't record met locations (just regions), but Emerald has all Hoenn and Kanto met locations recorded.