Technically, according to the documentation, it's named the "Command Macro Action List", but I have literally never known anyone to refer to it by that mouthful.
Makes more sense when you know the term for the instructions/functions in a command is "actions".
Profiles contain commands, commands contain actions. If commands contained commands, that'd make it more difficult to know which of the two people are referring to.
"Make VoiceAttack Start Listening" is something of a legacy holdover from when there was no context menu to switch between "other" actions, but rather a dropdown at the top of every action's edit window that listed all of those actions (there were much fewer of them at that point).
As there were no subcategories in that dropdown, the "Make VoiceAttack" prefix added some context.
In the same vein, "Make VoiceAttack Stop Processing All Commands" is listed as "Stop Processing All Commands"
Newer actions tend to be listed by their comparatively more succinct full name, with some exceptions like "Get User Input - Text", which is listed as "Get Text" in the "Get User Input" submenu (though if you favorite it, it is listed in the "Favorites" submenu as "Get User Input - Text"; "Make VoiceAttack Start Listening" is still listed as "Start Listening", however)
For actions that don't have options that can be edited, no window is displayed when adding the action (the only real functional reasons for those actions having an edit window would be to add it as a favorite, and to provide some informational text), so the full name is certainly much less prominent than for actions where the window does open automatically.