Yeah, nice analysis, good luck doing otherwise. This phrase has nothing to do with gender dynamics, infantilization, or (not sure why this needs to be mentioned) queer inclusion. Any husband who runs afoul of it for any reason will quickly correct course. It stands on its own.
And the science backs it up. Men might be providers, but women decide what to spend the money on. Men who start businesses often lose their wives, as do men who lose their jobs - usually within a year. Men rely on women for sex - which requires her to be happy. The dynamic is no mystery.
Disagree at your peril, friend.