He should have got away with it. He is who he is.

There are characters that are created for change and improvement, like Todd for example, and I would like to think BoJack was more of a shitty catalyst for PC, Dianne, and Todd to grow throughout the series.

Neutral is right, it felt happy to me compared to the rest of the show since seemed at peace perhaps due to him having the near death experience.

Elaborating: I feel like they could have done what Kubrick did with A Clockwork Orange. That is Stanley Kubrick didn’t allow Alex to grow (he actually reverted) past his droogish ways. That made the movie great!

I feel like BoJack was who he was, not good nor bad, and it should have ended that way.

Him trying to grow/change is perhaps just a quick way to end the show on a happy note.