It sounds like they initially did the work needed to not get turfed from care. And now that has passed and he is still in care they are not in a state of urgency to please you and they are slipping into their old ways. Usually when parents make a 180 turn on their parenting style as a result of daycare problems it rarely works or lasts because, well, if the parent really believed in a different style they that is what they would have started with. They are just placating the provider to get you "off their case" and now they are slipping back into their AP ways.