I think that Antagonists may have an unfair advantage as it is, considering that all of the AI baddies are on their side. And boss fights? Forget about it. This is coming from a player that plays, primarily, as an Antagonist. I've had some very cohesive groups, who were doing a great job of laying the smack on me when I was being all aggro and not particularly strategic in my approach, still end up with a Loss because the combination of enemies, boss, and Antagonist became an insurmountable wave of frustrating nonsense. If you know how to use the enemies to your advantage, the Raiders don't really stand a chance, and it ends up becoming an endless wave of enemies, plus an antagonist, versus four. Which is not fair. There have been enough people voicing their frustration over the lack of options for turning PvP off because the Antagonist factor is such an unwelcome (and unprofitable) deterrence from them enjoying and continuing to play the game, that if you were to give the Antagonist any more of an advantage, making them even more annoying to those who do not want to play PvP, then you may end up permanently losing a considerable amount of the player base. I think.
I mean, it could be interesting to give the Antagonist more of an advantage if there was a considerably greater (and guaranteed) reward for the Raiders, and those who did not want it could opt out of it altogether. Like, once the campaigns have all been released, if the developers implement some special event Raids where the Antagonist is an even greater pain in the Aleph injector. That could be fun, but players should have the option whether or not to participate. And the rewards should be boss awesome sauce.
Yeah.