Kevin, I'll tell you why not. Because the existence of the game you mention was due to an error by IYT as a result of their not realizing the right way to set up the game. What you are saying amounts to this: "People are used to playing it the wrong way, so we should not correct the error."
To me, I just don't think that is a good idea.
Yes, webTV users need the 13 X 13 board. But why not rectify the error IYT made by at least keeping the restriction on the 13 X 13 board?
Incidentally== non serious players are affected also, because even non serious players like to play the game with the correct rules. I have encountered non-serious players at DSG who were frustrated to have learned the game with the wrong rules as a result of what IYT did. So, it is not just the serious players who were affected.
(kaŝi) Se vi volas saluti iun en ties denaska lingvo, provu nian 'vortaron de ludanto', en la ligo "pli pri lingvoj" sub la flagoj. (pauloaguia) (Montri ĉiujn konsilojn)