Misleading Error Message 53004

I wanted to document an issue I have spent a few months on (off and on) in hopes that the error messaging might be improved.  The use case is that I can sign-in to Teams however, when I tried to switch orgs (guest access), I am seeing a "Your sign-in was blocked" error message on the screen with a body of, "We've detected something unusual about this sign-in."...  I received the same experience when using the web app or the Teams client as well as both at work and at home.  When I went into Azure, the failed authentication event said (example pasted at the bottom.)  The actual issue was that there was an old unaddressed risky sign-in event that was never dismissed after it was addressed in August.  Of course there is a business process gap however, if the both the user facing message and the Azure failed sign-in event had pointed me in the risky sign-in direction instead of an incomplete MFA registration I would have spent considerably less time trying to resolve this issue.  I understand if this post needs to be redirected to a different group but I wanted to start by documenting it here to hopefully save someone else from burning their time and MS premier (though I did not actually find the resolution as a result of that ticket) hours on this.