hugs to those with care provider woes... I know around here there are a few practices that are very "pro-vbac" up until around 30 weeks and then they start doing everything in their power to discourage the "attempt". I even know two loca moms who were given dismissal letters when they argued that they didn't want/have to agree to a scheduled c/s! (a care provider cannot legally drop a pregnant woman from their care after a certain gestational point unless they can transfer that woman directly to another care provider, but they can legally drop a patient up until that point and once you've been dropped it can be very hard to find another provider given that you're "marked" as a problem patient and given the formal/informal non-compete clauses common in some areas).
Anyway, I think that around 30 weeks providers feel a lot more confident in the fact that you'll stay put and, eventually, do as you're told. I know I've heard off handed comments (from OBs but also family practice docs and midwives who are generally pretty birth crunchy) about how a woman will "come around" and "be more reasonable" as the birth approaches. If you're getting a really bad vibe from a provider, but especially if you know that provider is sort of the best of the bunch, then this might be a good time to "play nice patient" and really work with your partner and doula to make sure that once labor begins (and you can invoke EMTALA) you're ready to do things your way.
Oh, and EMTALA (for those lucky enough not to need to have needed to know) basically says that a woman in active labor (so more than 5cm) cannot be denied care and she cannot be forced into surgery/interventions without her consent. It's how some women manage to have VBACs at hospitals that "don't do VBAC" or have outright bans against VBAC. If you show up in active labor they can't legally deny you care, and if you can hold your ground and refuse to consent to whatever it may be they legally can't force those interventions on you (without court odre, and while that has happened in the not too distant past, it's harder for hospitals to get those orders now).
On the happy side of the account though... I learned my OB/Midwife practice just hired a new midwife! And she's someone I know from the local birth community! Several of the local doulas have entered midwifery programs, and this lady is sort of the "first gradute" of that group. She has been a doula for years, a Birthing from Within instructor, and now she'll be one of the midwives who might be on call for my birth! Yay!