No, you are taking "great" out of context.

It is great that you can safely take a nap in a public space without fear of being robbed or worse (as one would have to fear outside Japan), without having police called on you, and with general public acceptance of such action.

Nobody will think you're a bum or a mad or look at you funny. Try that somewhere else and let's see what happens!

Japanese corporate culture is terrible and that is sad. I don't have an answer to that.

> Having a broken work/life balance is "great"?

Broken according to which cultural paradigms? Just because we have different ideas in the west does not make them better.