Im not saying that i die all the time, im just emphasizing that we are far from being indestructable or the best pvp healer.
And the armour contribution from tree form is not that huge, and im sure its been/being nerfed anyway.
And yes im pretty sure im playing him right. Ive been doing arena games for ages now, and had 2000+ team at the beginning of wolk, before blizz went ape on nerf..and when wild growth was spammable ( good times xD ) But there isnt much you can do from being stun-locked. 1 trinket doesnt exactly save you from the second stun. and barkskin is pleh...
Unless you know there is a rogue/feral druid in an arena match against you, and you fully hot yourself and your partner constantly, you have no chance.
And rogues dont exactly wait for you to be fully hotted until they attack.
They wait untill you are healing your partner or something else that takes your mind of your own hots.
And there is a big difference from arena and jumping into a room full of people(fully hotted and all cooldowns ready) Then, i agree, it is difficult to kill a tree.
But just like anything we have our flaws, and quite a few as i see them..