Of course. I can type a password from memory, or it can be auto-filled by the browser/password-mgr. No interruptions before signing in. Having to open email inbox means switching tabs/context.
You never forget a password and/or your password manager generates passwords and auto fills them with no hiccup for every website and app out there? Also changing passwords when a site policy requires it or when (not if) a breach happens? Because that is NOT my experience.
My password manager fills them in for me. E-mail means switching tabs and remembering which account I used to sign up for the service to know where to check.