It's quite clear that someone, probably the publisher Paradox, rushed this game out for the holiday period. The development studio even rushed out a warning to players ahead of time that basically said "Hey if you're going to play this you should know it's going to be rough".

One day a publisher walks into the studio and says: we’re shipping in 6 months. We need cashflow now, if we sell well you’ll have time for a patch before we start on the DLC.