I like the philosophy of having classical tanky classes, cc-classes, support classes and dps classes and having a certain balance amongst them to make them complementary to eachother. This is however a very hard thing to achieve but I like the idea nonetheless. Dhans and Noirs deal a lot of damage due to their elemental attack. If you however reach max items (60-75% PVP def 80% DD + blockrate + 40% hp back from nurse pet) you can be REALLY tanky and even noirs/dhans will have it hard killing you unless they fully combo you.
The GM's actually do listen but they have to process a lot of stuff (there is a lot of new content comming in the next 2-3 months). Beside that you're aware that the KR devs are the ones who deal with the balance patches and they do not speak english nor do they like it to deviate from their planning.