They can use whatever cliche or story hook that "works" as they want.
As long as they avoid the same mistakes of DOS2. Thus they need to:
- Have a unique story backround for Tav that does NOT happen when you play as other origin characters, and at least as heavy and impressive.
- Avoid NPC only armors, especially those that look even cooler than whatever the character can wear. That also includes options available to NPCs like body types similar to Halsin's. If only NPCs can have it, even origin characters but not our Tav, then it's a bad design decision.
- Avoid this trend with npcs full armored and equipped with anything they throw at you, only leaving a shortsword or whatever for loot. If they have it, they should drop it. Period. EA is already guilty of this.