The problem with that is that it's unsustainable. How many ie. Ben Adams would this work with, [email protected]? 1. Now Ben Adams owns `adams.me` and has no incentive or mechanism to offer his domain to the million other people with his last name.
His point is more "own the domain you use for email" and less "[email protected]," I think.
Bad: [email protected] (gmail)
Good: [email protected] (or your-lastname.com)
your-lastname.me or your-lastname.com - is the domain you own.
Once you own your own domain and mailbox - just use platform providers (or ISP) for what they are useful for - as a temporary convenience tools. Always maintain backups of your mailboxes under your control.
If ISP or platform-provider will misbehave - scrap them for then better offering.