I contacted Hasselblad PR today, and got this response:
Focus bracketing will be available in a future firmware update.
That’s great news for Hasselblad owners, assuming it is indeed suitable for focus stacking as with the Fujifilm GFX100S.
No word on when the update will be available, perhaps too late for my work on my upcoming trip with the X2D.
Thank you for ordering your Hasselblad X2D 100C and new lenses through the links on this site.