If i'm rigt, you can't change this the way you want. Maybe if you spend a few hours to find all paths you can override the complete Deity loot like it can be done with the supply crates and remove the artifact gift and add the artifacts you want as single loot items (means not as a bundle like this artifact gift). But i never tried if it works with the Deity loot path, and it would take a lot of time to mannually write the command lines.