Perhaps a deeper issue is that the "Name" of a program in human terms is very unlikely to ever match a name that you'd use on the command line unless it's only one word long.
In this case the executable is "mintinstall" and it could have been called software-manager or softwaremanager.
You are right, the human readable name is generally different from the internal name, but the internal name should be invisible to a GUI user.
Here the problem is that the name of the executable has made its way to the GUI.