They are not and nor should they add specs or skill trees etc... People would find which specs or trees that worked best and are the most optimize, and people without said skills or specs would be insta kicked from parties and the GMs wouldn't do anything about it, because of the playstyle clause they have already stated is the TOS. Most games that had skill trees have done away with them, because of cookie cutter specs.

So let's stop asking for things they will never add and, focus on bugs, hacks, bots, and content.

People don't realize how much work would have to go into revamping the whole game because you want something as dumb as skill trees and specs.

Then people would cry about "Why isn't any content being released?!" Because you wanted us to revamp the whole game, playstyle, mechanics and overall game balance to compliment these new skill trees or specs.