Absolutely, it will be pointless to EXTEND any CC spell that would last longer than 1 minute anyway on harder settings. With INcreased frequency of saving throws tossed in as well (in addition to the HS timer) that further negates the value of CC. On Elite settings, unless you are also Energy Draining the target a few times, spells like FtS will be saved against in seconds....Once I energy drained a couple of times, then I could make the spells last until the HS kicked in most of the time.