To add to @MDB’s point. Low latency, interoperability between devices from different manufacturers, independent streams (eg using a microphone to make a call or talk to Google shouldn’t affect the quality of whatever you’re streaming), multiple connections up to available bandwidth.
What Nick Hunn and others stress is that it’s a complete toolbox for developers. So maybe some of the best applications for it haven’t even been thought of yet.
But then none of this is available right now, so how long do you wait?