There's easily more than 100 riders going down that trail on any given Saturday or Sunday. Some are shuttling it multiple times in a day. In all kinds of weather. That 1600 riders a month wasn't a number Matt pulled out of his ass…there's a counting device on the trail.
I don't think it's realistic to expect race organizers all over the province to have a crystal ball to be able to predict perfect weather and trail conditions months in advance. Are race organizers supposed to just up and cancel an event because of the weather?
I just would not choose a new trail to hold a race on. When it is ridden in and the kinks are worked out weather becomes less of an issue(No crystal ball needed to know that).
If I built that trail (paid or not) I would be pissed you were holding a race on it. Was the Trail built for holding races? Was the original trail builder asked if he thought holding a race on his trail was a good Idea? Im guessing he would know since he built it.