Thanks for the advice, while much of what you stated is true, this is a game that is very much in Alpha?actually it is not even a game yet.
So tuning for performance is not the order of the day, also Open GL was chosen because the game is and will be cross platform, direct X is windows only. There is a software mode for the game should you not have a open GL capable card.
Is Direct X ever to be in the works, perhaps, but at the moment I am not aware of any great effort being made to make it so.