There is no good reason for these games to not be available digitally. The only two "objections" are so easily refuted...
"But there's no interconnectivity!" - The Legend of Zelda: Oracle of Seasons & Oracle of Ages are on the Virtual Console... they'll be bought, anway.
"They want people to buy the remakes!" - The remakes offer enough new content to stand by themselves... people will buy both, anyway.
I'm able to put my fandom away when I know there's a legitimate business reason for actions. (ie. Wind Waker getting an HD remake over Twilight Princess) But I don't see a good business reason for withholding old Pokemon games.
"On my business card I am a corporate president. In my mind I am a game developer. But in my heart I am a gamer." - Satoru Iwata
