If I'm not wrong SS got Jurassic Park license for Dinosauria line since Dinosaur Rule the Earth maquette. The license expired after Dilophosaurus and they decide not to renew it. It's Mean they can get more profit from each piece but can't make any dinosaur from Jurassic Park an Jurassic World...
They released many repaint ver Pieces. Some better some worst. I think they did because they want to restart the line after their JP license expired.
Yes Stego repaint scheme is better than old ver. i think.
I think old ver. is natural scheme and bit more exotic for repaint ver. Some better some worse depend on viewer.
However I can say repaint Carnotaurus is not good. But I like Stegosaurus and Spinosaurus repaint.
You can manage the same scale display as 3 group, Apato can pair with Krentz T-Rex, Camara VS Allo, Spino, Deinosuchus VS Parasaurolophus and T-Rex VS Trike.
Tyrant King, Trike and Carnotaurus
Stego and the rest.