User blog comment:Kogath/Monster Hunter Generations Discussion/@comment-26516708-20160823094031/@comment-17735225-20160823152541

I think it's because of their developed wings that is strong enough to keep them up in the air even from the shock. You see, if you flash Dreadking in perfect condition he actually flinched a little and shows a star above his head even though the effect is very short. This should indicate that he doesn't entirely block the light with his wings.