Also he seems to lay at the feet of Petrofsky the failure of any further progess in the area and even seems to insinuate Petrofsky misled people intentionally. I don't follow him on point one, it seems a non-sequitur. As for the second, I'm going to quote a section from one of the articles he linked to:

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“That was just for that event,” Davis, now Nan Huckeriede, said of her brief, but famous walk at graduation. “It was the computer-controlled electric stimulation, not me.” Davis had met Petrofsky while she was in college. “I was attending the WSU Lake Campus, and went to a spinal cord society conference there,” she says from her St. Marys home. “Jerry (Petrofsky) was a presenter, and afterwards, I introduced myself and told him I was interested in his research. “For about a month, I drove back and forth to Dayton to work with him, and then I transferred to the Dayton campus.” Following her graduation walk, Davis returned to her wheelchair, stayed in Dayton a few years, married, and then returned to St. Marys. “Jerry moved to California and stopped his research — I think he felt that he had gone as far as he could,” said Huckeriede. “But I still use the equipment he developed to get my exercise.” Last summer she traveled to Beijing for a procedure to strengthen her back and stomach muscles. “It didn’t work, but I knew it was experimental. It was worth a try.”

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Given all this, my take away is that John Horgan has axe to grind for almost 20 years now and it's still not sharp.