I personally think the biggest beneficiaries of this change are journalists who criticise the Golfs for intervening too early and hurting lap times on the track. This'll give the number-crunchers better results with which to compare the VWs against the RS250 and other track heros.
If my car had the ESP-off I'd only ever use it on the track, and even then only if I was chasing a great time. I doubt I'll end up ever tracking my car to be honest.