It is not depth when you change the setting with every edition and simply blame it on a random world-level catastrophe to justify your changes, instead of making it a natural evolution of the history of the world. it feels forced.
Depth would be if your new edition is tied to the past, if you set it as an evolution or the history of the world, not a forced restart you have to rationalize on the run with some bland justifications. They just "throw the old, in with the new" to serve the new "cool" changes in the rules, not to enforce good worldbuilding.
I do not say the changes are not needed in a tabletop game, and I know you first do the changes and then you try to justify them. That renews the game and makes it enjoyable, but that
does not add depth, at least not the same as other RPG, like the aforementioned.
I think it is a flaw that most long-timed western franchises have, like the comic companies DC or Marvel.
It is like in that episode of the Simpsons.
![[Linked Image]](http://i.imgur.com/f8DqOuj.jpg)