Just remember ATA is Canadian. and American. This holiday wasnt created by us or for us, so our understanding of it is limited. For us, St. Patrick's Day is just about wearing green and getting drunk. Dont put too much stress on ATA to make it 'authentic' because they can't.
Actually they did a hunt last year and they made them "authentic" I actually have one of the avis on right now lol. And I didn't ask for authentic plus the day is not about wearing green and getting drunk! Its just what people do.