That address serves as their administrative headquarters. As consortia, they have no true employees and work with an AMC to provide these functions. The CCC uses VTM Group as their AMC, much like USB-IF.
USB-IF has no plans to include magnetic retention in the spec for USB. The onus is on manufacturers to implement this on their devices and cables if they wish for this to become a recurring feature on the market. There might be a more detailed reason as to why and if you want, I can seek an official response from the USB-IF team and their association management company, VTM Group.