Two+ years later..
I asked Sakimoto about this via Twitter and
he replied "
i was just involved in arrangement and translation for GDLeen music of PC-8801SR ver. i never have heard SFC ver."
The PC-88 game he's referring to isn't actually called GDLeen, but it's part of the GDLeen "series" or something, it's called
Digan no Maseki (
Stone of Deigan).
I removed his name from this album since it's the soundtrack to the SFC game and has nothing to do with the PC-88 game that he arranged.