I mean, this was just the expanding aura that makes people collapse, not even the physical interaction with the power. While Shanks made an admiral freak out from miles away. This physical blow reinforced with Haki was indeed incomparable. All that is left is stacking peak Haki with DFs, but it's exactly that; a stacking of the peak of both worlds. Which won't go well with Logias though, as Logias are more about the raw element (unless there is some advanced form of coating for things like Light, Lightning, Magma and Cold).