The real problem in my opinion is the dev team should stop adding such element that causes conflicts among players in eureka like content.
e.g portal in eureka and 1v1 duel in Bozja.

According to my friend who saw some discussion in JP forum, some would go as far drop aoe at safe spot/rescue team member to aoe/not heal player that’s tanking the boss in the hope of disqualify as many people as possible.
Yeah those people are troll but how about the dev team stop introducing content that encourage such behavior.