obsolete
Deity
Choosing a civ for a "mystery map" and finding out you're not viking/dutch on water map; and finding out two years later that, despite your good intention, viking/dutch are simply too overpowered, well...it doesn't sound like much fun, does it?
One would have to be a beginner to not understand Willem & Ragnar are overpowered (all things being equal) on this map. So it goes without saying that the Map-Makers are well aware of this and left some penalties in place with these two civs.
If it turns out however, that this is not the case, then I would understand that complaint, and you'd have a right to do so.
I'm not going to complain until I finally see what the whole world looks like.
But I admit, had we known ahead of time, there would only be two leaders chosen this game. That should tell you something.