Generally whatever code is produced fails utterly to describe, at all, let alone concretely / repeatedly / verifiably, "what the exec had in mind", because the exec devotes all of 10 seconds of thought to communicating it.
The actual breakthrough might be social, in that "vibe coding" is exciting enough, and its schedule flexible enough, that it can actually coax high-level decision makers into putting real thought into what they want to happen.
