You're missing the point, I'm afraid. Marriage as the final act isn't a "characteristic flaw" of anything, it's just plain a characteristic of at least 99% of the non-tragic fiction written in the last four thousand years, including most of what is considered "classic literature." I used it as an example of a theme or message that can be found if you look for it (or not found, as the case may be), not as a flaw to pick at.

I probably shouldn't have used the phrase "critical eye" in my original comment--blame the time of night I posted it. I meant an analytical eye, not a fault-finding one. Pity "critic" has picked up such a negative meaning.