Zeus was on his heels because he loved being a dick of an older brother.
Zeus was the youngest of his siblings and Hades was the oldest. Why you wanna go and screw that up? I could forgive Hades not wanting to think of Persephone's mother in bed dor it being her mother and ignoring that it is also his sister because then he must think of the fact his wife is his niece and that is a whole other can of issues to unpack but you can't just be changing the order of birth!!
