Because that's what contributed to its success as a campaign setting and established its fanbase.
Dark Sun fans would vastly prefer a "Lord of the Rings" version of Dark Sun over a "Rings of Power" one. However, the latter seems far more likely seeing who's in charge of D&D these days.
Sooooo, you can defile but if you do you lose your character? What kind of a choice is that?
3.5e had the best defiling mechanic for dark sun (it was in Dragon magazine). You defile plant life and gain defiler points which ended up being a corruption mechanic. The more you take, the more your...
The preservation subclass was for druids for some reason, and you're right, it didn't actually preserve anything, it was just a buffing subclass. If anything, it gave off a more "guarded lands" type of subclass. At the very least it needs to be renamed to avoid confusion with actual preservers...
It's only a problem if someone at your table thinks it is. This comes across as very "I have a problem with this in my game so I think it should be removed from the setting entirely."
If by "ignore" you mean didn't have enough room to include all of that stuff then, yeah, ok. And the timeline in the book takes place just after Kalak's death (the year of Priest's Defiance), so of course it didn't have the prism pentad, as those events hadn't happened yet. All of those other...
4e Dark Sun didn't ignore nearly half of the canon from earlier editions. If anything, it took almost all of the old canon as is, then added a bunch of 4e stuff on top so people could still play tieflings and warlocks. That's why it was praised by Dark Sun fans.
I can guarantee that is not what...