Well, Gekko, in a game I just completed earlier today, the Bannor were in a lone, tiny continent - think Australia. They never made any off-island cities, and I didn't see any boats by the time I found them.
The Scions of Patria were in an island just South of where I started, it was smaller than the Bannor's island, but the Scions were pretty close to the large continent I was on, which had five other civs on it. The Scions never went off-island either, nor did they make any boats...
So, yeah. I don't think they'll be conquering foreign landmasses any time soon. The naval tech tree probably one of the last tech lines they research.
I won a religious victory - only me and the Malakim founded religions... Plus all of the civs had absolutely terrible economies... the Bannor and Scions had giant armies, though, because they never fought anyone.
Unrelated, but I can't think of anywhere to ask, how does the Sheaim ritual Elegy of the Sheaim work in FF, exactly? I was producing them like a madman until I realized that the AC wasn't going up at all from (at least) some of 'em.
Edit: I should have been more specific: does Elegy of the Sheaim stop working after a certain amount have been made, because it wasn't increasing the raw AC, either.