Freezing trap = the CC trap, it breaks instantly on any damage. Its basically a shatter combo every 28 seconds locking out our main CC completly.
I haven't PvPed in this game since Wrath, but are you fucking daft? I'm vaguely considering getting back into PvP and from what I can see, Ret/Priest/Hunter and Dk/priest/hunter appear to be the main hunter teams, or something with a rogue.
Now, if you're not horrid at this game, I assume you're baiting trinkets before you go into your burst, right? K, so you know the healer has no trinket up, you have your Ret throw a stun, your DK stun or silence or have your rogue gouge/blind. Assuming your teammates don't have their moves up, you toss a scatter/wyvern/binding/silencing (as 5.4 mm) on the healer. If all that fails, you freezing trap the healer, pop a readiness and go to town on your target.
That's entirely forgetting that you use freezing to kite pretty frequently (I assume you still do this) and you can launch crits into the face of whoever is chasing you. I don't know about you, but chasing a kiting hunter that's launching crits into my face isn't exactly a scenario I'd like to find myself in. And, of course, you can always just focus the healer. Unless something has changed drastically in this game in the past three years (and there's a good chance it has), I don't see why you can't bait a few defensives and just blanket silence>massacre a healer. Especially if you're throwing 100% crit chances into that target.
Don't forget the guaranteed LnL as surv.