This looks like Beta to me. I'd stay way from it till OpenAI proves it's stability and security (since LLM is not open-source). It could be used though but only if the company in question is ready to allocate dedicated resources to pen-testing this in a sandbox environment. Still, imagine the damage it could cause in case of a supply chain attack.
Even though, they do mention that there is human-in-loop process to approve patches, overconfidence will probably make people just push "Accept" without careful review.
Just my opinion. It could be a nice tool but again, I wouldn't use this for sensitive workloads.