The wisdom that Odysseus was taught when he went off to war, and the wisdom that Telemachus learned by seeing what the war did to his father, cannot coexist. One of them has to be destroyed.

In any case, the way her voice gets higher, and higher, and higher, and then even higher in her final chain of "waiiiiiitiiiiiings" is the craziest vocal feat in this whole show. Seriously, they might have just saved the best for last as far as voice talent goes.

Why is Telemachus even in this story?

If you don't spit it out soon, all that water will destroy you.

For the most part, Epic plays its allegory for war trauma in pretty abstract forms, rather than a direct one-to-one "Odysseus doing thing X is supposed to represent real world veterans doing thing Y." Calypso is an exception. She's drugs. She's just drug addiction.