I want to report what I think it's a conflict or bug.
When you check the Hardened Mode box in the settings, if you then go to the "old settings" it's going to show as "moderate". If you change it to "aggressive" there in the old settings, when you come back to the new settings you will see that the Hardened Mode box is unchecked.
Basically, if you change to aggressive in the old settings, it will appear as disabled in the new settings, which makes you wonder if HT is actually disabled.