the normal content is too easy

[Ronduwil]

I still don't know why they haven't adopted elements of Eureka and Bozja into the open-world zones, as opposed to just running the wheel again on gemstones and the occasional zone boss FATEs.

Which elements, specifically? Some of the elements are absolutely miserable, like the inability to fly and the loss of mettle when you die. The beauty of Bozja is that by being completely optional, it has the freedom to be as hard as they want to make it. You may think you want the open world to be like Bozja, but I guarantee that if it were to be introduced into the open world, it would eventually be nerfed until it bore almost no resemblance to the Bozja that you know and love.