First run of cars (inc ours (#92)) had Suplex spring/damper units (a basic non-adjustable model)...these were switched to Spax after a few months production and the ride height rose as you describe...
Why this was done is a bit of a mystery...esp as it exacerbated the bump-steer issues that then required the comfort-kit etc.
The lower height we have does create other challenges though as ground clearance and departure angle are low.