Thanks for the report and awesome video! There does happen to be a file on this one, but it's not fixed locally yet. During the week leading up to the Steam release there will be a feature lock and a round of marathon bug fixes. The map itself has a couple other issues so I'm sure it will at least get a look over, and hopefully a fix. I use this exploit a lot during testing so I should be able to pester Erik enough with videos of it if it comes down to the wire. ;-)
-Cheers