James Gasik
We don't talk about Pun-Pun
Why does WotC leave anything untouched? Because they don't want to have to keep making changes to the PHB and make their customers upset that their book is "out of date". That's why it took so long to address the Ranger. They even had a UA Ranger update that I remember being quite popular, but in the end, they just made better subclasses like Gloom Stalker to "fix" the Ranger in the short run.