Thing about Greek mythology: Orion was, canonically, basically the only male human that Artemis ever liked, and was killed by Apollo because he was mad that his sister may ever choose to stop being a virgin (which, also, was a thing she was able to do; she was both given the vow of remaining a virgin, and the option to go against that vow at any time without repercussions [so she wouldn't feel restrained and try to break it just to rebel]).
And also, SM was the mythology consultant of C2 on Artemis, Apollo, and Apophis. Expect accuracy to even the most fanatical details.
(SM playing as Orion is why we have Artemis and Apollo in this game in the first place... he created them as part of his backstory.)
EDIT2: Just generally, trust that anything mythology-related that SM has a hand in will be accurate even to levels where to people with a casual understanding of mythology it might seem that something is wrong. Or, in other words: SM knows myth rules well enough to know what the exceptions to them are as well.
EDIT FOR MM: Agreed. And while I accept that "everyone thinks she's dead anyway" from her (she's been cut off from the network for ~20 years, what else would they think?), yes, we should definitely spend some time in the decade (after the events...) making sure she's legit.