First, I see no medical proof in the article you posted, just testimonials. Have you ever heard of placebo effect? Very interesting phenomena. I heard the head of the rheumatology department speak about this. When the first double blind studies of Remicade were started at his university, one group got the drug (a biologic) and the other group didn't. Neither the patients nor the medical staff knew who got the drug (hence double blind). Another control was xraying the hands of all the patients in the study.
After a year, 52% of the people in the placebo group felt "significant" improvement in their RA. But the second xrays told a different story. These people who literally thought they were better, showed further joint erosions and deformities. In fact, the study had to be discontinued because it was not ethical to leave people thinking they were better, when they weren't.
So how many of these placebo effects are in these un-medically documented healings, I might ask?
As for people being healed, no one is saying that people are not. I do know people who do not believe in healing at all, but they are not on this thread. So, beware your arguments. We are arguing againt the entitlement that says "name it and claim it, " not that God never heals. He heals when it is his will, not because we command it, or speak it into existence, or whatever slight of hand these shysters are trying to make us believe.
I remember back when I was a young Christian, I was leading the worship at a revival meeting. There was an East Indian Hindu couple that came with their 4 year old son for prayer, who had been to the doctor and diagnosed as completely deaf in one ear, and almost deaf in the other ear.
The evangelist prayed, and the next day, the young boy could hear. They took him immediately to the doctor, who had him retested. He could hear perfectly in both ears. That was not coincidence or placebo effect!
The family came back to the meeting, to share their son had been healed, and the evangelist led them to the Lord. The next day, they brought more and more of the extended family, and they all got saved. Last I heard the child had grown up and was still serving God, along with his whole family.
So that glorified God! And that is the purpose of miracles - to be a sign to the unbelieving. These people did not believe in Jesus till he reached down and did an undeniable miracle. Of course, God also heals Christians when it is is will. But sometimes he has a much better plan for our lives. Physical sickness is not the worst thing that can happen to us. Sometimes, physical sickness results in a healing of our souls, and growth in character. That lasts for eternity, whereas this shallow WoF doctrine doesn't hold up to scrutiny at all.