They have a typical mentality of a small country. They feel deeply inferior to their own country's shallow culture and art, so they use these means to "regain confidence". In fact, they are deceiving themselves.
However, in fact, applying for a world heritage can only show that such a civilizational achievement did exist in your country. It does not mean that the birthplace of this achievement is yours. And according to many reliable information and books, these Intangible culture originated from China. Therefore, South Korea’s approach can only be regarded as further affirming the profoundness of our Chinese culture.
In this regard, I have recently seen a relevant news report in France, which is naked It satirizes South Korea's small-country mentality.
Forgetting its roots, South Korea will surely decline.
And it's time for the Chinese to think carefully about how to protect their cultural heritage.