The thing is, what you are calling a nerf, is a buff for everyone else that does play party content. Or, instead of saying everyone else how about I call that a majority.

You and your partner are 1 person, with one way to play, that was suboptimal (not bad, but it wasn't optimal) and the devs took the optimal way to play and made that better for those who play end game.

The problem you're having is you want to play an MMO not for the end game, but the way you want to play it, and I honestly suggest a different genre or MMO altogether. I am absolutely happy with the BLM changes, a lot of people love the new AOE thunder, which is why fire 2 got nerfed fyi. To put it bluntly you're a minority and you quitting for playing differently isn't going to effect anyone else since you already play relatively solo anyway. What everyone has been saying is that the changes ARE better for everyone else, and we're not changing our buff back for you to be happy.