User blog comment:IamJakuhoRaikoben/Chapter 496: Forward, Review./@comment-4945830-20160801190726/@comment-5303512-20160802122837

Well, interpretation aside, Gildarts is more disappointed that God Serena wasn't at full strength that he would have been a force to be reckoned with. And with living God Serena taking a few Empyreans before going down, I don't think that is how it works, if he can take it while at full power then it shouldn't be a factor to him, Gildarts would need something more powerful if he would have any hope of defeating him.