If this is true, the competition will unfortunately no longer be of any interest.
Agreed. The current format of this competition feels disconnected from the spirit of the original event.
One could reshape it similar to this:
1)Order pizza and pay with
BTC anytime during
the year
*.
2)Share proof of your purchases during "Bitcoin Pizza Day on Bitcointalk" by placing relevant receipts and photos.
3)Users who’ve bought the most pizzas with BTC
and eaten them 
become the winners.
*) Subject to discuss.