The routine suggestions are all just that, suggestions. If it works for LO and you all as a family, I say go with it. I'm one of those people who will get my kid up at 5:30, but I'm up then anyway (even pre-kids, I'm a morning person) and we do an earlier BT than most people I know. He has to be up at 6 anyway to have any chance of getting to kindy on time. To me, its about what works in your family. TBH, I can't see a flaw in DH's points, unless there's something direly wrong with her routine that is causing her to wake then.