do course settors not make map changes any more before events?
Some make minor changes. Many that I'm aware of don't, particularly vegetation changes because mapping the bush is hard and time consuming. It also doesn't pay all that well.
I certainly couldn't manage to put all the new MTB tracks on @Narrinyeri, although we are planning a remap. It would have helped to have a map on display at the start yesterday showing areas of felling and/or regrowth since the 2016 version we were using.