Even a fighting pool using defender that completely ignores its secondary isn't useless in this game. Superfluous, sure. But at this point, having a character that can solo a max diff, no insps, no temps, enemies buffed, player debuffed MoITF makes everything else superfluous. But that's a different topic.
In the end, those that have stated archetype balance doesn't matter are correct. These devs have made the direction they're taking things very clear. There will be no rollback of the buffs and we can all continue cruising along with godmode enabled for max rewards and zero risks cuz that's what the people want. If you don't want godmode, play something squishie and self-gimp to your heart's content.