For those that miss this feature. As a work around for now can you use a 3rd party app like ProShot? It looks like it does what you want:
--- VIDEO FEATURES ---
+ Up to 4K (3840x2160)*
+ Manual or automatic control*
+ Adjustable resolution, frame rate, and bitrate
+ Industry-standard options for 180 degree rule
+ Zoom and change any camera parameter, even during video recording
+ Real-time audio input levels
+ Timelapse video, with full manual control
+ Video light
--- VIDEO FEATURES ---
+ Up to 4K (3840x2160)*
+ Manual or automatic control*
+ Adjustable resolution, frame rate, and bitrate
+ Industry-standard options for 180 degree rule
+ Zoom and change any camera parameter, even during video recording
+ Real-time audio input levels
+ Timelapse video, with full manual control
+ Video light