The woman in this video is obviously fluent in English, as are many Koreans these days. When I first went to Korea in the late 1970s, I don’t remember meeting any Koreans who I thought was fluent in English. Even most of the Korean English teachers back then couldn’t speak English very well. They could read English pretty good but not speak it very good. Things have changed a lot since international travel was allowed in Korea after the 1988 Olympics and the arrival of the Internet soon afterwards, even for non-Koreans learning Korean.
ANSWER: I think so.