I don't think, just because the top 2 (or more) of the first contest were recreated, this now has to apply to all other costume contests... Team Ninja should and probably will do how they see fit.
Like I said my reasoning is to apply
if TN realized Eliot and Marie Rose because winners of the first contest.
If you was the author of Ayane's succubus what would you think knowing that TN choosed Eliot's one because the winner of the first contest (again, this has to be the reason behind), but then not your one?
I also don't think, it's logical at all to assume, all Japanese hate the first contest's winners, just because many in the West had a problem with the second contest's winners.
Indeed I never talked of Japanese fans (I'm far from doing the same silly generalizations that I read from various fans on FB) but always specifically of the partecipants (with this I meant overall the voters not the authors) of the second contest (that for same statement of TN were for the majority Eastern ones).
Too bad, that we don't have a clue, what costumes were most popular for the other characters, due to the opaque voting procedure of the second contest. In the end Team Ninja can make the costumes they want. We wouldn't even know, if they decided against the majority vote.
You said this more times, but a such reasoning don't led anywhere. They are the official winners and we have to base our assumptions on it: if what you say is true, there is no point in making requests to TN because a such behavior would go just against that principle...
Btw, we can't be neither sure of the legit status of a governmental election...