>>48208766???
They can't just copypaste without spending time to revamp the model or else it'll just plain look bad in the game compared to other Pokemon? Compare SciresM's Omastar Port to the official SWSH update. The textures and outlining don't match up with the rest of the game's style, the unofficial port would stick out like a sore thumb in bright environments. Now imagine this happening with Pokemon that are still stuck with 3DS textures, yikes...
It's in similar vein of unfitting to how Battle Revolution still used N64 Models that stood out really obviously compared to the models for Gen 3 and 4 Pokemon.