Not at all. Leading linguistic institutions in South Korea have actively supported using Hangeul internationally for decades:

• Cia-Cia language in Indonesia (2009): The Hunminjeongeum Society was deeply involved in adapting Hangeul to preserve this unwritten Indonesian tongue.[1][2]

• Ghari and Kwara’ae languages in Solomon Islands (2012): Linguists at Seoul National University spearheaded the development of Hangeul-based Ghari and Kwara’ae textbooks for their respective communities.[3][4][5]

There was also the notable Taiwanese Hangul proposed by linguist Hsu Tsao-te in the late 1980s as a solution for transcribing Taiwanese Hokkien.[6]

Moreover, it is important to clarify that Surat Inawa (also known as Whispers of the Wind, The Living Script, or simply the Inawa script) is not actually based on modern Hangeul. Instead, it is directly derived from King Sejong's original and pure 15^th Century writing system: Hunminjeongeum—or Sejonggeul, to use a simpler yet more honorable reference.

Sejonggeul is a profoundly scientific system created by King Sejong the Great. Because it is purely phonetic and features a unique syllabic block structure, it remains highly adaptable for global use, transcending the borders of any single language.