@sy8000: I don't remember Godhead confirming that's so or contradicting anything from villain's month, just expanding upon it. But feel free to prove me wrong. When it comes to the other things, those can all be inconsistencies you always see in comics, and the origin issue was pretty clear cut with it being the same Darkseid. Inconsistencies do not necessarily prove otherwise and can be just that, inconsistencies. Hell even Infinity Man and Forever People showcases a lot of inconsistencies with Darkseid's and Highfather's origin, yet still references events from villain's month. Even if it is a different Darkseid, it does not really take away from the fact that piercing one's eye is not impressive, be it Darkseid's or anyone else's.
@gaoron Tony tanked nukes multiple times so there is no reason to stop at nuke because of heat.