Okay, so let me see if I got this right...
Let's take Adeleine as an example of a character that isn't in as a spirit. She never showed up in any way, shape or form in Smash before, right? Not as a sticker, trophy or anything like that. If she were to be considered now, that would make her new to the Smash Bros. series, right?
Just making sure, because not much of anyone seems to grasp the true form of Reggie's comment right now.
It doesn't matter if she's not currently viable, never stop supporting for her! If people drop support for her because of this, Nintendo might think we weren't that interested in her for future Smash installments. Just look at the Isaac fans, they're not giving up even though he got a hard deconfirm (and are even fighting to try and bring back his series).
Glad to hear that last part though, that's the spirit.