By design, anything you do under template standard values should propagate across on to the items you create using that template, including the standard values you insert for the parameter template fields. The chain would break if you do some custom modifications on the target item presentation settings though. i.e. after that if you modify the presentation settings of the template standard item, it would not propagate onto the item. You will need to click on "Reset" menu button under "Presentation" for that item to fetch the standard presentation settings.