The LaunchPad links are very similar to the software deployment portal links. Running the task from the core will only try to display the link, it will not actually run the task to install the software. Although I haven't tested this one of two things will happen:
1 - The task will show as successful and the data will be stored on the client telling it to display the link in LaunchPad if it gets open. Of course, since LaunchPad won't ever open, nothing will be displayed.
2 - This is the scenario I find more likely. The task will fail with an error stating something along the lines of an incorrect function being called.
The easiest way to find out would be to run it on a single test device in your environment.