Beating up senior citizens and "fake" legends like RVD & Booker T isn't exactly the same as ending 'Taker's streak at WM. As I mentioned in the Orton promo thread it makes no sense whatsoever to put Orton over after turning heel just 13 days before the match. When you take into account that no one outside of Orton marks would even perceive Randy as on the same level, you've got a recipe for disaster.
There is no build up here, and there will not be an adequate follow up because Orton is screwed either way. If he stays on RAW, he's still beneath HHH in the pecking order. If he goes to SmackDown he doesn't have all of the superb and/or over workers to carry him (Benoit, Jericho, Benjamin, Michaels, HHH etc) anymore. Add in the fact that there's next to no way 'Taker won't get his win back in that scenario, and it's likely he'd bury Orton in truly heinous fashion if it meant he had to give up his streak in the first place.
Basically, Orton's in a dead end situation, and that's pretty much because he's not nearly equipped to carry the ball they keep trying to give him for reasons I just cannot understand. If they gave half the effort to someone like Eddie, Christian, Edge or anyone else that the fans like in the midcard-upper midcard they'd have had a huge star on their hands. Instead, they've got a lukewarm guy who can't get over on his own and yet they still don't realize it's time to pull the plug on his push.