Confusion Regarding Track Type Definitions and Suggested Improvements

Photoshop UXP Plugin API
1 
export declare type VideoTrack = {
  setMute(mute: boolean): Promise<boolean>; //sets the mute state of the track to muted/unmuted
  getMediaType(): Promise<Guid>; //UUID representing the underlying media type of this track
  getIndex(): Promise<number>; //Index representing the track index of this track within the track group.
  isMuted(): Promise<boolean>; //Get mute state of the track
  getTrackItems(trackItemType: number, includeEmptyTrackItems: boolean): any; //Returns array of VideoClipTrackItem from the track item type
  name: string; //Get the name of the track
  id: number; //The ID of the track within the TrackGroup
};

export declare type AudioTrack = {
  setMute(mute: boolean): Promise<boolean>; //sets the mute state of the track to muted/unmuted
  getMediaType(): Promise<Guid>; //UUID representing the underlying media type of this track
  getIndex(): Promise<number>; //Index representing the track index of this track within the track group.
  isMuted(): Promise<boolean>; //Get mute state of the track
  getTrackItems(trackItemType: number, includeEmptyTrackItems: boolean): any; //Returns array of AudioClipTrackItem from the track item type
  name: string; //Get the name of the track
  id: number; //The ID of the track within the TrackGroup
};

export declare type CaptionTrack = {
  setMute(mute: boolean): Promise<boolean>; //sets the mute state of the track to muted/unmuted
  getMediaType(): Promise<Guid>; //UUID representing the underlying media type of this track
  getIndex(): Promise<number>; //Index representing the track index of this track within the track group.
  isMuted(): Promise<boolean>; //Get mute state of the track
  getTrackItems(trackItemType: number, includeEmptyTrackItems: boolean): []; //This returns the track items of the specified media type from the given track
  name: string; //Get the name of the track
  id: number; //The ID of the track within the TrackGroup
};

This interface is quite confusing to me. Why do captions and video tracks have isMuted and setMute ? I would prefer to have properties specific to tracks, such as enable/disable, show/hide, rename, synchronize, etc. Even adding a solo feature would be useful—for example, exporting specific track content.