I guess it was not clear on the site which clearly stated to post "in" you need to be in for both.
And the logic behind it from being
1) There were no other games posted
2) The first date might be -21 and 40KM winds
#2 was needed so it is fair to all 80+ who are pumped to come. So if 3 days prior the weather becomes physically dangerous, we would logically have a back up date.
Anyway, it seems like I am the one who was not clear, and there are really not that many players who change there mind and go to other games that often.