OK, OP here. Here's what happened. I called the number that was in the email, and first was waiting on a queue, then they said the phones were down and I was disconnected. So I called the regular reservation number and told my sad tale to the person on the phone and the only thing we could work out was upgrading to WL for $400 more. So I took that and made sure the reservation was changed online. Then I continued to call the original number they gave until it came back up, and eventually got a human on the phone. Turns out this number is guest services, not a typical reservation number. She heard my story, and I was very nice but made it clear that I wasn't happy about the additional $400 cost. She put me on hold for a while, and came back and offered to send me a $400 gift card to make up the difference. I was fine with that. So that's where we left it. Assuming that card arrives, I'm satisfied with how it was handled. I know that Roaring Forks is under refurbishment while we are there, but I can live with that.
I have to say that this really annoys me though. I make every effort before I book a location, to make sure that everything is in order, nothing is being refurbished, etc. And then 60 days before they do this? That stinks. But I've never stayed at WL, so I'm happy enough to still have a really nice resort to stay at that isn't ginormous (which is why I had payed for a preferred room at CBR).