housands of pilots have been flying without medicals on NPPL GP declarations for the last 10 years and gliders pilots always have.
Having had a heart attack 20 years ago, three weeks after my Class 2 with ECG, they are not infallible.
Indeed although clearly had the heart attack occurred during flight you'd likely not be in a position to have posted. So its perhaps less an endorsement of greater freedoms and more a question over why the focus is on the ECG and, for example, no Lipid test.
Stereotypical incapacitation accidents are probably quite uncommon
Does anyone keep any data? Opinion is great but wouldn't be nice if we had actually captured data on these things. One issue that isn't helpful is that in a case when unwell pilot blogs impacts the ground the cause of death is often focused upon that impact because to dig deeper costs somebody some money and even if that money is spent the results are not necessarily 100% conclusive such that the initial cause is changed.