I know that; I just know that she/he will be perceived as a clone due to, you know, "Dark" Samus. And just because they can make Dark Samus completely different doesn't mean they would.
Also, SAX would be a fun addition, especially if it transforms into the monster version as a final smash instead of Zero Suit. But similar to Dark Samus, it would be viewed as a clone even if it played differently.
See: Lucario.
So let me get this straight. No to Dark Samus, who historically does nothing like Samus. But yes to SA-X, who is literally all of Samus moves, and the only time the character would be any different, is during the incredibly brief Final Smash?
That doesn't make a lick of sense.