This idea has been merged into another idea. To comment or vote on this idea, please visit RPM-I-119 Office 365 Inspector - Show MFA status per-user.
Thank you for taking the time to give us feedback on this idea!
We agree that this would be a very valuable feature and are looking at it closely. You can already use the Secure Score values (and associated AA rules) to get alerts if users in your O365 environments do not have MFA turned on. What we lack currently is the ability to tell you which users are at risk. That data is not available via Microsoft's base Graph API, but it has recently become available in a part of the API that requires an Azure AD P1 license. We are investigating how to surface that data at least in cases where there is a P1 license and will keep an eye out for future ways to surface that data for all users.