I think this is part of a larger trend of Microsoft refusing to patch any bug they simply don't want to.
I've had an issue with the Remote Desktop app on Android for three years where the cursor drifts further and further away from where it's drawn over the course of a session and when the Android keyboard pops up. Several users have reported the issue (including myself), and Microsoft still hasn't fixed it.
Once again, this has been a major usability bug for over three years. The only way around it is to disconnect from the session and reconnect every time you use the keyboard or once the drifting becomes too much.