The issue with COBOL surely isn‘t about the language itself. The real challenge will be to decipher the spaghetti code that was created at a company in the last sixty or so years. And then to dare changing something without breaking the program as a whole.
If I put the source mentioned in the linked article through google translate, the only result with regards to Taiwan is:
https://www-mfa-gov-cn.translate.goog/wjbzhd/202407/t20240724_11459443.shtml?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp
So Ukraine does not support China‘s position on Taiwan. The title is misleading and fake.