That still isn't the worst thing that has happened. No, the worst thing to happen was the fucking Mortis Trilogy.
Qui-Gon's ghost shows up in the middle of the clone wars. A Sith who is considered the greatest threat to the galaxy (stronger than fucking Sidious!?) shows Anakin the future where he kills Padme and becomes Darth Vader.
What happens? Well, they kill the uber powerful destroyer of the galaxy sith lord by stabbing him with a knife, and then they have their memories erased.
Yeah, they just pulled a fucking "Pokemon: The First Movie" on everyone. Goddammit.