Per the documentation for onOptionsItemSelected()
Returns
boolean Return false to allow normal
menu processing to proceed, true to
consume it here.
The if returned true the click event will be consumed by the onOptionsItemSelect() call and won’t fall through to other item click functions. If your return false it may check the ID of the event in other item selection functions.
Your method will still work, but may result in unnecessary calls to other functions. The ID will ultimately fall through those functions since there is no switch to catch it, but return false is more correct.