The moon doesn't shine full strength for 8 hours every night in the same spot, just like the sun doesn't blast us all day long. We have a gradual rising of the sun, then the intensity can be felt for a few hours before it tapers off and we cool down again with lots of shadows.

Same with moon lighting. Keep in mind the moon isn't even a full moon but only one day a month, and with the various phases it goes through, there are nights of total darkness and other nights with limited light.

There have been presentations giving on LED lighting at MACNA, and one that stuck in my mind was a beautiful reef tank in a fish store that had two corals that looked terrible. They just happened to be in the exact spot where the LED light pinpointed all the time. The bulb uses so little power that the owner didn't see the reason to use a timer and left them plugged in all the time. Thus the corals bleached because they never got a break. That seemed more than a reasonable assumption for me, and frankly I've never used moonlights in all the years I've been in the hobby.

I'm enjoying the one hour each night after my actinics turn off, but have no issue with my reef being in complete darkness for the majority of the night. Do you stay up all night with your tank? Could you not set the lights to turn off when you slumber and give your corals a break?