I'm guessing that the workaround to change coordinates is to reverse them with the warp shader but this is too much of a work around.
I honestly think that the idea of making "function-like" duplicates of at least some shaders is the answer. That way if you don't know exactly what to do you just use red nodes (I do understand the point of putting the red nodes in there) otherwise you use the "function-like" nodes. This would make TG2,s node network basically like how others generally work but especially more like the Mojoworld one.
