MGs were the everything clearing gun, not just adds. Lots of other weapons cleared adds no problem but a full MG clip was doing more damage than other heavies by far

That's my point....they WERE the everything-clearing weapon. Now that they are 1/5 less effective against bosses and mini bosses, Bungie is pretty much declaring them an elemental sweet business....so move them to the energy slot and I'll gladly wield a rocket launcher, too...win-win! I would also argue that while powerful, they do take time to deliver their payload...you have to keep on target to do damage and may get killed halfway through a magazine. A rocket launcher is a fire-and-forget weapon. I get where you are coming from, but I do find it a little frustrating that it took me a while to get a good roll on my hammerhead and I finally put the radiance (whatever it's called) in it and now it's less than it was yesterday. Whatever, it's only a game....

Tradeoff is high burst (rocket) vs efficiency (MG) MG is efficient by being able to hit a dozen targets with 1 ammo brick. A rocket to the boss face should do more than a full MG clip but before the nerf the MG was doing more especially with damage multipliers and face crits

I totally agree that a rocket to the face of a boss should at least equal a belt from an MG (modifiers notwithstanding). They needed help. Badly. Perhaps I just think that it would have been nice for Bungie to do it in a way that didn't make me feel like they were devaluing a gun (from the previous DLC) that I put effort into getting and upgrading. Full Disclosure: I know the darn things are kinda OP, but I primarily use them on bosses and that was the mojo that was nerfed. I am also a bit salty because I recently started going after the Whisper and I was hoping my Hammerhead was going to help me (still working on getting past 3rd room:). Add that to the WoW ammo nerf and I'm questioning both my game plan and my motivation to keep trying.