Apparent Rear Hatch Opening Technique Discrepancy

OldGuy

In organizing my Z portfolio today, I came across the quick start-up guide. It actually states that you have to press the rear hatch pad two times---once to "unlock" and 1.5 seconds later, again to cause the hatch to open.
I thought owners were upset because the hatch wasn't opening with just one touch of the pad. This manual indicates that two taps being needed are not a sign of a defect but actually are required to make the hatch function and open, as designed.
Can anyone reconcile this discrepancy? Does this guide mean two taps but refer only situations when the doors are locked?
No big deal----just actually curious.