So, whose faith was present in this instance? First, the mother of the boy responded to Jesus in faith. For this woman to allow Jesus to interrupt the funeral procession and tell her to stop weeping has to be viewed as a positive response. These people were no different from mourners at funerals today. If she had rebelled at Jesus' intrusion, the crowd would have sided with her because of pity, but none of these reactions are recorded. Jesus was in command.
It cannot be proven that a dead person has no choice in what happens. We may take it for granted, but the Bible doesn't state that. A person doesn't cease to exist at death; he simply leaves his body. The person is still very much alive. Many people who have been raised from the dead have mentioned that they had a choice in whether or not to enter their bodies again. Although this principle cannot be verified by scripture, it cannot be ruled out by scripture either.
In any case, to be consistent with the rest of the bible, some degree of faith had to be present in either the person receiving the miracle, or an intercessor (in this case, the mother).