I guess they're too busy promoting tips, mods, etc. http://bethblog.com/index.php/2010/11/02/fallout-bulletin-tips-mods-and-more/
I think there was a typo in the first sentence, though. Should read:
You’re exploring the New Vegas wasteland, and then it hits you: if only there was something that added more grass to didn't crash the game.
Totally intended as frustration-based humor, btw. Really, I'm sure they're working hard on it. :brokencomputer: