You would vote down the Green Wyrmling based on that alone?
Yes I would. The other Wyrmlings are all D&D wyrmlings. There have been some persuasive arguments to allow a wyrmling that is not a D&D one to join the ranks, but turning a bronze into a green is going too far. That's not to say it wouldn't pass SoV over my, but that's my vote.
I can't blame you. I would have nixed that sculpt for Quahon right away. (Not the design of the card however--Quahon is awesome.)