Honestly think they should have not used the fighters in the game for this.. it's so confusing.. Moms probably think you have to buy the statue before you even get the character in the game.
What they should have done is create like 5 or so amiibos... And instead of the amiibos being characters in the game, they would be non playable characters, like Shyguys, Goombas, Bloopers, etc etc.. Actual pet like characters, or even originally designed pet like characters that could aid you in battle.
That would be infinitely cooler, and I'd buy all those little mothers.
people would go absolutely ballistic that they "cut characters to place them behind DLC figurines"