I am afraid that the free model of their service will not work very well if tens of thousands of teams start to use this now. It is easier to trust the known brands and organizations that also charges a bit when you use their system a lot.
Most of the Jitsi devs are employed by 8x8, which offers a service based on it: https://8x8.vc and it also integrates it in Virtual Office, it's core product. Disclaimer: I work for 8x8.
