It’s more that if the Parade WO is a thing, then it should be a written addition in an IBN, and then written into the next amendment of ACP1358.
The other quirk I find funny is that pace sticks are only permitted during drill instructional duties, but white belts for DIs are caveated for drill duties. The omission of the word ‘instruction’ to me seems relevant as this then permits it for all drill/ceremonial activities and parades.