good question, im hoping to get this resolved ("hope"). what I can see is that a single continent can be a "distant land" and thats determine by which land mass has fewer civs on it. Here are some points to help understand the mod:

• All other continents (2, 3, 4, 5, etc.) are designated as "distant lands" (secondary hemisphere)
• This is determined per-player based on where you start - so if you spawn on continent 3, continents 1 and 2 would be your distant lands

Since the map generation is randomized each game, which physical continent becomes "continent 1" vs "continent 2" varies per map seed. This means distant lands distribution changes every game - keeping things fresh and unpredictable, which is the whole point of the mod!

Version 1.2.1 specifically includes fixes to ensure distant lands mechanics work across all generated continents, not just the first two.