A family of Microsoft word processing software products for creating web, email, and print documents.
As Jay mentioned I also have 365 and am limited to the 3 robotic voices.
I don't use Read Aloud very often, so I didn't notice when the voices changed (again). I still have the same version/build as mentioned in my post of May 28, but the Male and Female voices are back. Clearly this depends on what is set up on Microsoft's servers, not on anything in your local Office setup, and may change without warning.