Yes. I don't think it was a lie since it would needlessly create problems, but it was either the initial idea that was hastily revised after seeing the market reaction, or rank carelessness.

It's fun to joke about a politician's gaffes, and simple verbal slips are understandable - I noticed several in the speech but they were not substantive or significant. However, I think when drafting and reading a preapred statement on a topic of grave importance politicians have an obligation to say what they actually mean.