I can tell you from raiding consecutively on 2 boomkins that this is NOT a skill issue. Why should I have to work harder to do the same or less dps than a 'pure dps' class like a mage? Which I know is easy to do, since i've also raided as a mage in current content.
When I did raid, I was for the most part topping the charts. But as everyone else got gear, they scaled even better than me and locks and mages started easily pulling ahead of me.
The only good thing going for Boomkins right now is that everyone wants one for an RBG team because of our silence/vortex, off heals and massive aoe damage. If we didn't have stuff like a silence, no one would want us. The NV change is going to change our burst and it'll affect both pve and pvp.