I think it would have been better if they made an ending (with a scene, or whatever) and as they add bosses, they made them part of the prerequisites.

It would have avoided a lot of frustration.
Don't you think that would have been a better way to go?

Because there, in how long will we have an end? There are still 3 biom to do ... That means in several years ... It is not a good way to do it.