I might be being naive but....

[Gamefreak]

I think that they are just soldiers created in the image of Ganon because Ganon think's he's cool.

[Evilslayer]

Well, then they'd be blue. :P In that game, at least.

[Gamefreak]

Well Ganon didn't want exact clones.  Then Ganon would get bored eventually.

[Lokes]

yeah, and It would remind him too much about the Smurfs... which really isn't that nice....

Even Ganon would be afraid then, and the smurfy evil creatures would rule the galaxy!  :o