I suppose heavy aircraft could well get to D8 GVA before reaching 7000' in which case the actual track over the ground after the turn would vary for individual flights. Our FMS does not show this extra 2 miles, just the overfly for D8 GVA and the left turn at 7000'.
Incidentally I did one of these SIDs earlier today and ATC cleared us after 6000' direct to GOGOL.