And the local spawns should be drawn to whatever fools starting fighting each other in a combat zone? If someone is bothering you in game, ignore them or report them.
The entire concept is out of character with the story. If you really want this option, instead look to a one-on-one crucible system. It would be easy for the devs to do and would fit the story.
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There are plenty of grim cards showing fighting between guardians, it's not out of story so much as out of a traditional PvP setting.