I was always a bit sceptical about Mario
 

and I think I vaguely remember on DS people were like, "Oh, so the mole suit JUST HAPPENED to fit perfectly?!"

I thought rather than going through the big song and dance to show how legit the ball drawing was, I think the third ball chose should have been the one to go in, and she showed us two not-Marios, so we know all the balls didn't say Mario.