While FHIR is certainly making health records development more approachable and sane for developers, it isn't going to fix the large-scale data interoperability

While FHIR is certainly making health records development more approachable and sane for developers, it isn't going to fix the large-scale data interoperability problem. Even if we completely suspended disbelief and assumed it was perfectly and consistently adopted across all EHR products, it still is just a structured way of exchanging data like HL7- the much more complicated issues preventing semantic interoperability of clinical data still exist.