When a search finds matching menu commands, their icons are shown and the menu item's description is displayed. But its keyboard shortcut is not displayed.
As a result, the user cannot discover the keyboard shortcut for that command. If he needs to use the same command once again, each time he has to use the searchbar. That reduces his productivity drastically.
If the Searchbar can display the keyboard shortcut for all commands, the user will be able to make a mental note of that, and use the shortcut the next time. After a few times, he would develop muscle memory and become highly efficient.
Therefore, please consider displaying the keyboard shortcuts with each search result.