As an aside, I kind of wonder what happens next after this. For those skeptical of adding racially diverse characters without additional cause, what ends up being the reaction if the next Smash added someone like Marina, or Urbosa? Does the opposition resign and accept that Sakurai determined these characters are worthy of being in Smash on their own merit? Or does the goalpost move and people claim they were added as a token?
I fear that many who suggest racially diverse characters need more substance to back up their case will simply judge the character choice under their own criteria, and determine Smash made a choice influenced by social pressure over organically deserving their spot. Typically this kind of conversation is layered in the idea that everything will be fine as long as the character truly deserves it. But the fine print is that everyone's criteria for which characters deserve to be in Smash are personalized. Black characters are often held under more scrutiny to justify themselves.
And detached from Smash, if we got say... a black protagonist for a new Xenoblade game, what would the greater reaction to this choice be? I believe based on precedent that the reaction would mixed, and many would accuse Nintendo of pandering to western sensibility. We are often told that we need to establish more prominent black characters first, but it can often be an uphill climb for audiences to accept these characters in the first place. So my bottom line is that people are often unfair. Even if some of these candidates do win out and join Smash, proving the concerns about their importance false, I believe some people who have those reservations today may still hold it against them later. I'm not sure they can ever win through those eyes.
...So in other words, this conversation will continue in a circle and unfortunately likely not change even under the scenario where we did get a new POC on the roster. If praise is directed toward this decision, skeptics will still be upset that attention is being drawn toward their identity at all.