WebRTC isn’t like Node.js or TensorFlow. Its purpose isn’t adoption in general, but rather adoption in browsers. If you believe otherwise, then there’s a problem of expectations you need to deal with.
Video meetings and guest access has come a long to the point they are today. Check out how they have evolved and where we are headed.
What I like at how companies are tackling spam calls and robocalling is that the solutions they bring to the table are based a lot on their DNA.
While the story about Facebook eavesdropping WhatsApp is wrong for now), it does raise thoughts and questions about security vs privacy.