The point of the map isn't holding the continents, it's holding the full continents and the 3 islands surrounding the continent. All players that hold a continent have more incentive to hold the 3 islands next to it (for both troop movement purposes and bonus) than taking over a second continent. This will cause players to fight over the islands. Fighting over the islands means players have less armies, which means cards will play a larger factor as well. If you're concerned with a long game, use increasing cards.
If the bonuses are higher, it will be unbalanced. Because of smaller continents, there will actually be more bonuses awarded compared to the world map. The bonuses are surprisingly close to what you'd see in the world map for equivalent situations, yet there is no Australia. Example: holding either Eonap or Frico and no islands that surround them you get 2 bonus for holding 4 territories just like if you held Australia or South America. Second example: holding either Tralia or Saljo and all 3 of their respective adjacent islands, you would get a 3 bonus for holding 6 territories just as if you had Africa.
The point of the map isn't holding the continents, it's holding the full continents and the 3 islands surrounding the continent. All players that hold a continent have more incentive to hold the 3 islands next to it (for both troop movement purposes and bonus) than taking over a second continent. This will cause players to fight over the islands. Fighting over the islands means players have less armies, which means cards will play a larger factor as well. If you're concerned with a long game, use increasing cards.
If the bonuses are higher, it will be unbalanced. Because of smaller continents, there will actually be more bonuses awarded compared to the world map. The bonuses are surprisingly close to what you'd see in the world map for equivalent situations, yet there is no Australia. Example: holding either Eonap or Frico and no islands that surround them you get 2 bonus for holding 4 territories just like if you held Australia or South America. Second example: holding either Tralia or Saljo and all 3 of their respective adjacent islands, you would get a 3 bonus for holding 6 territories just as if you had Africa.