From an implementational perspective it's also always good to have explicitly bespoke designs out there to contrast against the bog-standardness of WebRTC with its standard "can't be helped" set of limitations and flaws.
I also find it very fascinating to hear that OSS was the cause of (headdesk-inducing) myopia and blindsiding. My (naive, distant, apparently out of date) impression was that open-source was incorrectly perceived as the inferior option in the stereotypical case. I guess the entropy pool really can go in all the directions...