Yea. But in that time there has been an absolute revolution in what can be done with that data. FHIR specifically has completely changed the landscape.
Yes. FHIR was pretty well established when I was writing the thesis, but I am very pleased to see it get more and more usage since then. Apart from interoperability the opportunities to do much better data mining from free-text medical notes with AI, are huge now. Back when patient prescription lists ot structured, so many new drug interactions were found, now there's the chance to do similar stuff from open medical records.
Patient-accessible medical systems are more common now too, which is great. EHealth got way more common. At the end of the day though, what your doctor is clicking on still sucks, which is the sad part.