IDK if I were in their shoes, it would be really awkward to correct him, if I even fully understood what he was saying at all. I half-miss what people say all the time, and I also notice that people misspeak/miss words often. I think just moving forward gracefully without missing a beat is professional.
That said, JC/his show needed to do better. But also, no one cares outside the internet, I promise. This will blow over by tomorrow.