I am not sure if it is intentional but when Seafarer is chosen you will get a bit strange enviromental conditions
-only birch. Where there with all other start condition (using the same map) would be other trees like spruce there is nothing.
That also makes gathering pointless early in the game. When your foresters has been planting for some time you could turn to gathering but by then you dont really need it anymore.
-a few scattered wild birds but no big game so hunting is out of the question
– it seem to be much larger quantity of stone, although that might partly be that is more visible with no trees.
It is still possible to get going but it is perhaps a slightly bigger challenge than intended?
I have most of the mods noted as compatible active – nothing else. However the the important point here is that if other start conditions is chosen everything is normal.