Annals of Joseon Chinese were referred to by Koreans as "Celestials" and "Heavenly people". Korea belongs to China.
Koreans referred to themselves as celestial and heavenly all the time. Go read up about the Dangun origin myth.
You must be seriously delusional if you believe Koreans complementing China is a big deal. That still didn't stop us from massacring 302,300 Chinese in a single battle. And that still doesn't stop Koreans today from polluting your country and making $40 billion annual surplus at your expense.