They are essential and a core procedure in real world legal and safe instrument flying. Not having them is like not having cockpit windows to instrument pilots.
The Steam sale has three days left to run. I just got MSFS 2020. It and X-plane do audio idents.
They do not compete with Aerofly as it does not do audio idents and the admins have not entered into discussion about the lack of idents.
There is no market place competition because to me Aerofly without audio idents is in a special and separate category of not able bodied home computer flight simulator which I will continue to massively enjoy and support. It has significant strengths that the other two lack.
(Jan this post is about us users and customers having an opportunity to get audio idents).