There's a comment, in the Village Voice piece, by the person who was then (1977) the editor of Advance! magazine, and he expresses regret at having featured Ingo Swann so prominently while tying Ingo and his psychic abilities so heavily to the OT levels, and expresses chagrin that he was partially responsible for people, even to this day, attributing psychic powers to doing Scientology's OT levels.
Here, of course, Ingo, himself, praises OT 3, as they all do, directly or indirectly, as part of the over-all LRH and Scientology love-fest.
After leaving Scientology, Ingo went cool on praising the OT levels, apparently was somewhat embarrassed by it, even though, as I recall, he became involved, for a time, with Harry Palmer's spin-off cult, called 'Avatar', and praised that also.
However, from what I can see, Ingo doesn't like mentioning Scientology anymore, and - at some conference, which I saw on YouTube - bristled at the suggestion that his "powers" are attributable to Scientology.
Alas, the Scientlogists will always believe that whatever "powers" Ingo has, or had, must have come from its OT levels.
I only met Ingo Swann once, at a conference on Psychic Phenomena held by the Mensa Society in New York City around January 1973. I listened to Ingo give his talk, and then talked with him for a while afterwards, once the talk and the question and answer period was over.
During the question and answer period, someone asked him if he was a Scientologist and Ingo very reluctantly, and with visible displeasure, answered "Yes."
Then, it was obvious that it embarrassed him slightly.
Yet, a couple of years after that, here's Ingo praising LRH, Scientology, the OT levels, etc. How sincere he was at that time is any one's guess.
Now I think he's embarrassed by it again.
As a footnote, for the benefit of any nascent Scientologists, IIRC, Ingo Swann has said that he was psychic since the age if 5. Swann explored many systems, including the Monroe Institute.
Scientology always jumps to co-opt any abilities anyone may have - if they can juggle, it's because of Scientology. If they can cook, it's because of Scientology. In that sense, Scientology is a parasite.