Not saying they should, they could easily do it though. The story has been so watered down and retconned it really doesn't matter. A bunch of mortals should of never been able to beat Kj or ach in a straight up fight and you know when ever we get the Sarg fight its gonna be another horrible murder of lore. As I said the possibilities are limitless, using Argus to as Nexus across the cosmos you can turn the story any way you want.
-pop into a 3 way war with the legion, void/old gods and native species
-assist enslaved population from breaking away from the legion
-searching for Titan bastions for more artifacts to deal with Sargeraos
ect