Reading your post and their terms of service I think that they are not really honest with what concerns the Freedoms subscribed by the GNU/GPL.

Their framework is so dependent from their CSS and Javascript that you cannot use it without them... and those are not free in any way.

Worst than being stubborn like the Thesis developer, Grant is taking the hype of that discussion without really freeing the theme. That is not such an honest move, sorry to say.

I think this is one of the best Wordpress Theme framework I ever seen but they are not honest at all with their approach to GNU/GPL and the Wordpress Community.