I know that this has become a popular rebuttal to faith-confession teaching but this ideology would have to conclude either that:
a. Healing is a separate thing that is ministered to people that requires only the faith of the minister and no faith on the part of the recipient or,
b. Everything that we minister requires only the faith of the minister to include the new birth, Holy Spirit baptism, sanctification to live holy, etc. (In the latter example, if people I prayed for to be sanctified remain in sin then it is my fault because I did not have enough faith as a man of God).
"a" would be problematic since Jesus often gave credit to the faith of those who received their healing:
But Jesus turned him about, and when he saw her, he said, Daughter, be of good comfort; thy faith hath made thee whole. And the woman was made whole from that hour. (Matt. 9:22)
And Jesus said unto him, Go thy way; thy faith hath made thee whole. And immediately he received his sight, and followed Jesus in the way (Mark 10:52)
Faith RECEIVES what God has given. If there is no real faith required on the part of the recipient then either they will never receive of if they do (in the case of the gifts of healings) they will not keep it and they will lose it. If faith is not required on the part of the sick one then let us no longer teach God's Word to them. Let's teach it only to those who will minister and make them bear the full responsibility for getting people healed. That way, if I pray for so-and-so and they have no Word in them and they do not get healed then I can blame it on me no matter how much Word I have in me and despite the fact that I have always received healing when from God for myself.
Let me end this by saying that I have been amazed over the last couple of decades how we have division on healing and faith even amongst those of us who all believe that God heals (and is generally willing to do so). But I think that the men of God such as Kenneth E. Hagin, Oral Roberts and others knew what they were talking about not only from their personal study of God's Word but from their years of experience in seeing results in the case of healing.