Why doesn't Toyota flash 2020 Supras with the same software changes that were made to the 2021 Supra suspension, handling and engine/tranny mapping?

[Janet & Frank]

If the 2021 GR 3.0 Supras are better planted than the 2020 GR 3.0 Supras, why doesn't Toyota just flash the old software with the new, better code? Plug and play, as it is said. Maybe it will happen.