starking
African nipple cobra
This how I'm going to explain it. The theory is very complex, but I'll make it as clear as possible. Legion was effected by Zero hour, Darkseid was not. Zero hour wasn't so much a retcon but a time change. Darkseid and other New God characters, stand outside of the influence, of the retcons such as Crisis on infinite earths, and Zero hour. The Darkseid before th events of Great Darkness saga, was supposed to be even more powerful(or just as powerful)then the one in Gds.
For example, lets say Marty Mcfly beats up a cripple kid, but some time altering event occurs, and such an event never takes place. Mcfly may have never beat the stuffing out the cripple kid, but the time change has no effect on the his physical power.
If Zero hour didn't effect the New Gods, then logically they should still have the power to perform such feats. Like I said, time changes do not effect ones power.
If unless one can give valid evidence to why ones power, would be effected by a time altering event, then theirs no way to debunk Darkseid's Gds feats.