Let's talk about Adaptibility and Disorientation - as they seem to be universally despised.

With Adaptability you can get a whopping 3% bonus to trigger your responses. I do agree that is underwhelming and it doesn't really speak to the adaptablity of the guardian. However, the survivability of The Defender of the Free is pretty insane. So adjust mitigation feels a bit like overkill.

Let me pose s few potential solutions:

1) When struck by a skill (skill, not effect) that critically damages the guardian, they become immune to critical/devastating criticals for 10s
2) When struck by a skill the guardian applies a mitigation buff against the skill source (tactical or physical) that stacks up to 3 times and lasts for 10s
3) When the target blocks. parries, or evades, increase your finesse up to 3 stacks for 10s.

For Disorientation, I do agree that the reduction in the BPE, is rather useless in end-game content. Thinking about it now, combined with the feedback on redirect - it might be possible to swap Redirect from The Fighter of Shadow along with Vicious Rebuttal - this does, however, really overload the blue line specialization. Though, thematically, it might make more sense.

So, let's think and talk this through.

Redirect moves to The Defender of the Free in the same slot, requiring 15+ to access. Vicious Rebuttal moves to The Defender of the Free in the same slot at 25+. There's no change to the skill gained or the effect on the skill via the trait. Because we are moving Disorientation off of The Defender of the Free, complete speciality into the tree moves up to 54 trait points for a full spec.

If we move Disorientation to The Fighter of Shadow, then we can alter the trait to make it more support based. So let's put out some ideas:

1) Each tier of Disorientation applies a 5% chance for AoE skills to apply a 2s Daze to marked targets (5 tiers)
2) Each tier of Disorientation applies a 5% chance to reduce target finesse by 4% per tier (5 tiers)
3) Each tier of Disorientation applies a 5% chance for Response skills to apply a 2% miss chance/tier effect lasts for 10s and cannot occur more that once every 20s. (5 tiers)