According to Dr Kim, it wasn't called Chinese New Year anymore because it was Korean.
LEARN ABOUT CHINESE NEW YEAR
People are lazy these days. They believe whatever the media says.
Do not fooled by the media. in this case, Dr Kim.
Chinese New Year is basically Lunar New Year, when Chinese cerebrate and eat chinese new year cakes, jiaozi and much more.
Koreans also cerebrate it but they definitely did not create it.