Please Clarify and explain CG?

Most likely the text and Cron was created with no specific unit in mind i.e. a generic container and later , the actual unit was decided upon. "They" is not an uncommon way of being able to insert any character in without rewriting the text. Thus , it refers to the unit and only the unit that is revived. You can view the mechanics of each data Cron in more detail at swgoh.gg.

Here you go. https://swgoh.gg/db/datacrons/9/ability/ability_set_maul_001/0/