Pachinko is a huge deal in Japan. That's why they have the budget to make everything look like that, 3D aside, though even that wasn't too bad comparatively. I do agree that this probably won't result in something like a modern Combattler anime, much as I'd enjoy that. Pachinko can be a success regardless of it's theme, but I don't know how well a classic style super robot would really do.
But hey, maybe it'll be a really popular machine and we'll get a Voltez one next.