Uh, Guy, Obama suggested the sequester not because he thought the cuts were good, but because he thought they were so obviously bad that even a gridlocked Congress would be compelled to come up with a real alternative in order to avoid them. But Congress has so far failed to do so. Accordingly, Obama rightfully takes Congress to task and again urges it to do its job.
To suggest that Obama thereby "denounces his own idea" is just silly. Turn your attention back to the real issue: Congress needs to do its job.