I would advise complementarians to recognize that John Piper and Wayne Grudem are complementarians trying to find their way in applying complementarianism in a complex world and that what they say need not (and should not, despite most egalitarians’ criticisms) be taken as “what complementarians think”. Many complementarians disagree with some of their particular applications without disagreeing with complementarianism. And we need to remind critics that egalitarians say things much sillier and more damaging to the gospel and to the Bible than anything we can find in Piper or Grudem. Consider Evans’ book, for starters. But, that being said, I think the Piper-Grudem introduction to Recovering Biblical Manhood and Womanhood is one of the weakest sections of that book. The actual engagement with the biblical texts is very well done. Some (but not all) of the other material is not so careful.