I'm a psychiatrist and I work with an addiction population. I think many of them would be glad to have this as an option. It's certainly not perfect, but it would provide an additional layer of protection to people who struggle to maintain sobriety. I think it's sad that the first reaction to this is to think of it as something from "dystopian" science fiction. The oral medication disulfram shares a similar mechanism of action, but it has to be taken every day. When a patient begins to struggle they often stop the antabuse, losing the benefit. At least gives them a few months of protection and if after that they choose not to resume it sounds like that's a possibility.

With proper informed consent, it's a welcome tool to a common and potentially devastating problem.