We're in a transition phase, but this will shake out in the near future. In the non-professional space, poorly built vibecoded apps simply won't last, for any number of reasons. When it comes to professional devs, this is a problem that is solved by a combination of tooling, process, and management:

(1) Tooling to enable better evaluation of generated code and its adherence to conventions and norms (2) Process to impose requirements on the creation/exposure of PRDs/prompts/traces (3) Management to guide devs in the use of the above and to implement concrete rewards and consequences

Some organizations will be exposed as being deficient in some or all of these areas, and they will struggle. Better organizations will adapt.