We are not aware of any specific environments where MagicZero is inappropriate for use. However, it is still possible to turn off MagicZero and only use Manual Zero from the head unit. To do this, turn off AutoZero on your power meter from the SRAM AXS App.
I grabbed that from here:
SRAM MagicZero
I’m about to install one of these myself, I can see where it would be confusing, maybe that will help.
I’ve already noticed elsewhere in the manuals that came with mine there are discrepancies between what is written one place and another in specs for torquing bolts, for example.