wip, when linkthemaster said TRM was nearly finished with the "original oot2d", you could have assumed he meant original as in his oot2d project - the original idea and game, and not that he meant the actual GM implementation. (Though i dont believe that myself)
Anyway, a program dedicated to zelda game-making would make this place more productive, but one made in GM would be ...Just...so slow and memory abusive...And someone in with an OOP background and a media library could still make games nearly as fast, only there would be no limits on what could be done, and utter efficiency and quality.
What this kind of thing would do, is crush down and (lossily) compress the learning time to making a zelda game. Not the production time. THe change to that would be like....zipping a png.