Emergency situations are defined by two situations: severe accidents and manual press of the button. Article 6 covers the data being sent, Article 5 covers the manufacturer's obligations. Your audio during the accident and your last three locations may leak, but the eCall system is not designed for a permanent phone-home system. If I remember correctly, you can't even use the eCall SIM for tracking as that'd encourage people to disable safety features.

All the things you are talking about, permanent phone-home, tracking of location, audio and video, driving habits, are tracked, sent and resold. That's what smart cars do. But it is not done through the eCall system. See it from the company perspective: why would they risk penalties for non-compliance when they can gather and resell all personal data with no risks using their own system instead of a safety one?