I agree that the new zone is 'brutal', but if you prepare and adapt for it, then it becomes much easier.


(Please note: I use a max geared and level 70+ toon, so my experiences may not match yours)

There are 3 main things I have had to address:

Damage type
Use Fire (with a healing secondary skill) - I have used Fire /Druid, Fire /BC and Archery /Druid mostly so far.
e.g. Use Fire Arrow if you use Archery
With Fire /Druid, I have soloed up to 5 non-elite mobs at once and can easily kill single non-elite mobs
Without fire in my build (e.g. Archery without Fire Arrow), I usually die to a single troll
Note: A Priest /Mentalism (fire build) worked, but was marginal whilst UA /Psychology (with fire Headbutt mods) got me killed in most fights


Mana
By using top level food, snacks and flower buffs + mana regeneration spells, I have very few mana issues even when fighting multiple mobs at once

Flying:
Flight makes the zone so much easier as you get to pick when and where you fight


Note on elite mobs:
Currently these are too tough for me to solo and require a group - which is good as it indicates that the difficulty is about right.