When Robin gave that performance, he was 47 years old. He'd been married twice. He'd been addicted to cocaine, and had partied with John Belushi the night he died from an overdose - which drove him to clean up his act.
Was some of his performance made up? Absolutely. Was he overreaching? Definitely. You can't know what a war zone is like until you've been in one. Words can't describe the strange normalcy that only gets dispelled (rather uneasily) when you leave the area, or how the rest of the world seems to lose some of its color and realism. You can't know what losing the love of your life feels like until it happens.
So yeah, some of his soliloquy lands hollow, but not all of it. And that's the nature of the entertainment industry. You work with what you've got, and it doesn't have to be perfect.
As a repackaged critique of treating LLMs like people and letting their works pass as deep (or letting LLMs lull you by behaving as such), it makes its point.