Oh, yeah! Women who would NEVER use "Mrs. HisName" (because that's so oppressive) end up changing their names legally to HerName-hyphen-HisName. They're still taking HisName! The husbands don't hyphenate their names. Yet somehow this is considered a sign of a liberated woman...
Well, that's kinda the point. Those women who choose not to take their husband's name at all don't hyphenate. FWIW, one of the happiest couple I know, both married over 40, and she didn't take his name, but kept her maiden name instead. She just found out she was pregnant as a matter of fact, which makes one feel sorry for her doctor since she and her husband are both obstetricians.