You guys, I finished watching the The Clone Wars (considered canon by Marvel) episode that got me thinking about this and I think it was explained there. It has nothing to do with what I wrote and nothing to do with killing the Emperor or the Jedi.
Apparently Anakin had to do something in that episode to bring "balance to the Force" and he didn't.
I don't want to spoil anything but the episode is from Season 3 Episode 15.
http://starwars.wikia.com/wiki/Overlords
Nintendo is selling their IPs to Microsoft and this is true because:
http://gamrconnect.vgchartz.com/thread.php?id=221391&page=1







