Yup, pointless, both from the fact that SS stops the car anyway, plus the transmission control module monitors the car, and when you're stopped on the brake it further decouples the clutch so the 'creep' stops. As you remove your foot the car readjusts the clutch bite to provide the 'creep'. It's constantly monitoring and changing the bite, it's not just the 2 states engaged or creeping.
I've been on the Tiguan forum for 6 years and members have cars going back to 2008, I've never heard anyone having to change the clutch plates on a DSG. I do know some early DSG's had some issues, but you're talking 10 -15 years ago.