…as I previously assumed. The download list update “slowness” was actually filtering caused by Parental Controls enabled on the console. Unrated content will be hidden. XNA Creators Club does not have any control on what code will be executed on the xbox. So the XNACC download is marked Unrated and thus hidden.
Michael, Program Manager for XNA Game Studio, and PatrickB3 probably knew this all along, they just wouldn’t tell me until right before Christmas. Turning off Parental Control on my console solved the mystery.
