After "Mary and Arthur are Odysseus and Penelope" I raise you "Mary and Arthur are Odysseus and Calypso" and most importantly, Mary is Orpheus and Arthur is Eurydice. If you get it you get it.
And John/Abigail/Jack are also lowkey Odysseus/Penelope/Telemachus coded. Or rather Hector/Andromache/Astyanax, taking into account their tragedy.
And then Dutch is just Zeus. And yes I have been listening to Epic the musical and Hadestown.