While there are still quite a few issues facing the introduction of WebRTC into an e-learning environment, the overall benefits are appealing and significant.
The benefits of the ease of use and removal of barriers for setting up an audio or video call or screen sharing session cannot be underestimated. This will drive more interpersonal interaction between educators and students, among students themselves, and even among educators themselves. This makes the overall e-learning environment more engaging and can lead to better learning outcomes and higher satisfaction levels.
The distributed peer-to-peer nature of WebRTC can also lead to some significant network and infrastructure cost reductions. While some media relay / TURN server infrastructure may be required today, this will be significantly less than using older video conferencing technologies. If you are able to just focus on capable, early adopters initially, then you may be able to skip this cost altogether...