This is what I hate most about the medical profession. In the beginning they "seem" good to go with many things, but as the end nears, they begin to think about themselves and their liabilities, procedures, and the way they like things to go.
So you go suddenly from "natural, have it your way" to "Uh oh! Something COULD be wrong and we better do this".
A friend of our just had this exact thing happen. Since the beginning of her pgcy, her doc told her that she is encouraged to VBAC and he would NOT (emphatically stated, BTW) induce unless he had no choice. However, I told DH four months ago to watch and see, things would change and he would push an induction and eventually a repeat c/s.
And what do you think happened at her 32 wk appt? Suddenly there is a "concern" and an induction has been scheduled, with a high probability of c/s being tossed around (oh, and perhaps we should just skip the induction and go straight for the c/s).
It is sad when you can almost predict, word for word, what they will say.