Wouldn’t it be worth investigating why they are executed? Given this organ trade is going on I wouldn’t be surprised if their “justice” system is being literally trigger-happy because they benefit from the resulting organs being made available.
Executed in a systen where law is not supposed to be impartial but only a tool among many to upkeep the states power. I don't think humans where worth much after death before modern organ transplantation. State arbiter gets more reasons to less leniency when there is a profit to be had from the execution.
In an already 'unfair' system adding profit motive to executions can only worsen the humanitarian result.
I agree, even if it's five lives saved per murder there's probably a better way. (Voluntary suicides come to mind.) In my view the article did not make the case that "people are being killed _for_ their organs," but "people are being killed _and_ they're taking their organs." The first policy is unambiguously bad while the second is efficient in some ways and dangerous in others.