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Fake psychics can hide real spies
Revealing how it found the wreck would tip off the Soviets and could get the spy killed. So an agency has a reason to invest in other ways of getting information, even ones it doesn't believe in or that don't work. When something real arrives, it can credit one of those instead and throw off the KGB.
That logic could explain why the CIA kept funding remote viewing, the practice of describing distant places through a meditative state.
Why did the CIA fund remote viewing?
The program began in the 1970s through research at the Stanford Research Institute, after US officials worried that the Soviet Union was investing in psychic research. It ran under several code names over the years, including Stargate. In 1995 an outside review by the American Institutes for Research was commissioned, and the program was ended afterward.
How have agencies hidden the source of intelligence?
In World War II, British codebreaking of German Enigma messages was code-named Ultra. To avoid revealing it, commanders arranged for reconnaissance aircraft to be seen near a convoy before an attack, so the Germans would credit the sighting. The secrecy around Ultra held until the 1970s.