It is worse than that Stabbey. Just by being Sourcerers they are ALL combatants (yes even the children).

So yeah basically it would be like a Prison Bus filled with Drug Cartel members where they have all been handed AK-47s.

Bad enough that they let you have magic on the ship, but that is just a "Story and Gameplay segregation"

The Island itself I understand. It is supposively impossible to get off the island and the weapons there pale in comparison to what the guards have (not to mention the guards are well fortified and have a lot of reinforcements). No ordinary person could have taken on the fort.