It’s been on my todo list to do a similar reverse engineering of the earlier (for the Gold / Silver games): Pokémon Pikachu 2 GS which similarity has never, to my knowledge, been dumped.
I’m slightly worried Dmitry will get to it before me. ;)
No time like the present! Never let somebody coming before you stop you from doing what you want to.
You’re right, and I’m inspired by this write-up with some ideas to try that don’t involve having to deblob the board.