In general, yes, but not in the same way people without autism do. Since children along the Autism Spectrum have difficulty showing emotion, sometimes we can't see the bonding directly and only see the bonding in a reduction of the child's symptoms. As Temple Grandin says, "When you take a drug to treat high blood pressure or diabetes, you have an objective test to measure blood pressure and the amount of sugar in the blood. It is straight-forward. With autism, you are looking for changes in behavior." In most non-Pawsitivity families, the dog bonds most strongly with the other members of the family, not the child with autism, and yet those families report that there is a significant quality of life improvement because the child is behaving better, both when the child is interacting with the dog and just because the dog is around. Note that the dogs we have trained have, so far, a great track record of bonding with their handler because we encourage a protocolof "All good things come from the handler" (the child should be the one who interacts with the dog, not the parents).
Families report that the dog is a benefit to rest of the family, too, by alleviating some of the stress that comes with caring for a child with autism.