Not that I know anything about this, but isn't it possible that having this segmented sleep could possibly be bad for you? Just because our ancestors slept as s

Not that I know anything about this, but isn't it possible that having this segmented sleep could possibly be bad for you? Just because our ancestors slept as such doesn't mean it's necessarily good for you, does it? (That's not to say it couldn't be good, just that I don't understand why the article seems to imply that it necessarily must be good.)