Yes it buys more time and it shows that you are strong and she doesn't boss you around!
I have read several threads where the WAW tries to get the LBH to do the D work and gets quite agitated when he doesn't, but yet something holds her back.....either money or something else. Either way, she needs to be a big girl if she wants this D and not depend on her H to do it "for" her.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!