HG, has so far and unfortunately, not done anything wrong. The license they got from Tatsunoko grants them the right to reproduce images and merchandise seen in the animation. Even if BW owns the IP rights to the character and mecha lineart, BW effectively gave Tatsunoko the rights to use those images when they help make SDFM. And Tatsunoko passed those permissions to HG. BW can use and abuse those drawings however and whenever they want. They own those drawings. Tatsunoko can only use those images to sell related merchandise. They can't create anything new and why would they. HG has been doing the same. As I've said, it won't take much to just completely redesign the VF-1, SDF-1, and etc. for the LAM.