True and that explains why people are confused as to what actually happened. I watched it live. I get the feeling if Obama had just waited for his cue the whole thing would have gone off without a hitch. For a split second I cringed and felt sorry for Obama, but only for a second.
Like I said before, where the cue comes isn't always the same. Watch some past inaugurals on YouTube. For Bush in 2005, the pause came right after the name, which is what Obama expected. For Clinton, the first pause came after the "solemnly swear," which is what Robert intended. It might have been smart for them to communicate about this beforehand, but either they didn't or one of them forgot what they'd decided on.
I'm wondering if they fixed it later. The Constitution doesn't say the oath has to be public, and it'd take them 15 seconds to make sure they fulfilled the requirement.