Currently you can’t administer users in the back-end by editing their database entries - no “send password reset link” or “change email” options.
You can’t do the latter in the front-end either (!) - only the user can do it. So if a user forgets their password and no longer has access to their email address, there is literally nothing you can do - I think.
So having user management in the backend - or the right tools on the front-end - would be useful.