Without having read the story, this is not ''news''. It's know for years...
However, you cannot solely blame China as supply fulfills (Western) demand.
You want a new heart, they'll execute a prisoner for you. That's how it works.
China has just passed laws prohibiting any death sentences without being approved by the countries Supreme Court. This will (should....) cut
down on the amount of executions as previously any court could order the death penalty.
Despite that though, if a criminal is executed, why not use their organs to benefit others? Seems like a waste just to bury them....