And now let's just dive into the meaning of Christmas and just think: Christmas is about love, having a waifu means you love her (at least you should), than trying to get closer to your waifu with a onahole means you want to get closer to her in every way possible, which is fairly close to the meaning of Christmas (no, but who cares????) so this contest is "perfectly" fitted for Christmas.
Yes, I found out the secret train of thoughts behind this event, yay :D