Not trying to make catchy headlines.
I just find it surprising. Would even see it as a matter of trust. I would expect an AME to posess skills of ECG interpretation to the extent of knowing when to consult a cardiologist.
ECG interpretation is not an easy thing to do, especially if it is not part of someone's day to day. But as always one's professional resposibility is to know when to consult.
I do not argue that the CAA has looked into this. Once again, just surprises me.