Other Pokemon with official forms that have been changed to palettes, such as Vivillon and Alcremie, also have the issue with shiny spawning (although Alcremie doesn't naturally spawn unless Datapacked), but this doesn't matter as much considering their pre-evolutions do not have more than one shiny palette, but this change could still be made for the sake of consistency.
Other Pokemon with official forms that have been changed to palettes, such as Vivillon and Alcremie, also have the issue with shiny spawning (although Alcremie doesn't naturally spawn unless Datapacked), but this doesn't matter as much considering their pre-evolutions do not have more than one shiny palette, but this change could still be made for the sake of consistency.