There is something wonky on their software related to these on the Air, too. I wish they had manual brake hold like Mercedes/Tesla (press brake pedal after stopping). The "creep" mode legit just doesn't work as expected in the Air. It will creep once or twice, then never again.
However, I have noticed regen brake settings affects this too. If you are set to roll/creep, with regen on, it will act like brake hold. If you turn regen off, it will roll forwards or backwards. I don't know why they made this choice but its confusing.