1. Costa's an excellent reporter. Nevertheless, it's not entirely clear that he's reporting Congressional leader success -- or Congressional leader spin. It is clear that Congressional Republicans are not going to stand solidly behind Lee and Cruz, but especially in the House if a few dozen Republicans stick with the Lee/Cruz plan, then Boehner can't pass anything with a party-line vote.
2. Even if it's true that the Obamacare showdown has been delayed, perhaps indefinitely...as I said the other day, that only brings us back to square one. Boehner still probably wants to find 218 votes for a CR to take to conference, and certainly needs to find 218 to pass a final CR that will also pass the Senate and get signed into law by Barack Obama. It's still hard to see any yes votes out of the hard-liners; it's still the case that the bulk of his conference hates voting with Democrats and against the hard-liners, regardless of substance.
I'm not saying a shutdown is inevitable. If I had to bet, I'd bet on Boehner dodging this one, too. But it's very much a touch-and-go question. It ain't over and won't be until the votes are counted, no matter what Republican leaders wish -- we're still heading for a shutdown confrontation.