If you're getting married and looking for some sort of upside in the event of failure then you have already failed at marriage. Partnership and love are why you get married, you don't think of the consequences of a potentially failed marriage if you've ever truly experienced those things.
If a woman refusing to take a mans name signals something then what does it signal that most men would never consider taking a womans name?
Face it, 'traditional' marriage is an outdated concept based on historical misogyny. I'm a guy and not a feminist so whatever, this doesn't bug me that much but you can't really defend it with a straight face.