I completely agree that the most effective way for remote teams to communicate is via asynchronous video messaging instead of real-time video conferencing. Some of the difficulties I've experienced coordinating meetings with remote colleagues include:

- Difficulty scheduling a time that fits for all participants. Some team-members are inevitably stuck with a non-ideal timeframe. Often times it's the same employee suffering each meeting, which leads to resentment.

- Interruptions during productive hours. See the Maker's Schedule, Manager's Schedule (http://www.paulgraham.com/makersschedule.html) - reacting to interruptions can be disastrous.

- Frustration from choppy/laggy video that results in loss of important parts of updates and valuable information.

I'm actually building an app called Tape to address these kinds of issues and to improve communication and collaboration across teams by integrating into existing workflows not against them. If any of you guys are interested in learning more or trying out our product, I'd love to connect: https://trytape.typeform.com/to/pKe6X5