Almost the entire structure of software oriented companies, and why devs are expensive, are to prevent these sorts of errors. That job has gotten harder, and in some places impossible as management forces more trust on LLMs and reduces the capacity of devs to look. This is less of a problem in existing products in production and existing cultures - revenue is protected. Eventually those structures break down, as does the user perception of quality. Once the brands have taken enough knocks, it accelerates.