I didn't watch the video but his article with the same title is almost entirely bad points.[1]
Email is end to end encrypted for people who make it a priority. It would be end to end encrypted for everyone if Google or Microsoft made it a priority.
The difference between XMPP and Signal is funding. Signal supports video on all platforms because Open Whisper Systems hired people to work on it. XMPP didn't because the popular clients are developed by volunteers.
People don't like using lots of messaging apps. So switching apps is much harder than changing your email address because you have to convince other people to switch.
Even Signal is moving away from using phone numbers.
Signal's been "moving away from using phone numbers" for almost as long as it's been developed. They've burned tens of millions of dollars and have nothing to show for it on that front.
Also they insist of making piece of shit bloatware clients and actively kill every attempt for someone to fix it. Because Moxie is always right apparently.
I really hope the situation is just due to incompetence and hubris.
Email is end to end encrypted for people who make it a priority. It would be end to end encrypted for everyone if Google or Microsoft made it a priority.
The difference between XMPP and Signal is funding. Signal supports video on all platforms because Open Whisper Systems hired people to work on it. XMPP didn't because the popular clients are developed by volunteers.
People don't like using lots of messaging apps. So switching apps is much harder than changing your email address because you have to convince other people to switch.
Even Signal is moving away from using phone numbers.
[1] https://signal.org/blog/the-ecosystem-is-moving/