Junichi Masuda's statement seems quite ironic, nowadays
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Though to be fair, by the time this Pocket Monsters game was in the works, Game Freak's staff wasn't sure if they were willing to continue to work on the series after Pokémon Gold/Silver. An N64 Pokémon RPG game seems quite intriguing, tho, albeit only feasible on the 64DD due to cartridge space. Even with the wizards at Factory5 being able to cram in all 151 Pokémon models + cries and other sound effects in Pokémon Stadium (not to mention Stadium 2), they'd need a lot more space to add everything else.