What Would Need to Be True
Evidence that information vacuums alone don't create the same rebound effects as thought suppression. If they do, then Seven Sisters and Wegner are truly identical mechanisms.
Evidence from inside manipulative systems: do people experiencing both missing information and pressure not to question experience stronger thought amplification than people in either condition alone?
Clinical evidence: can creating controlled information gaps trigger clinical ironic process symptoms (obsession, intrusive thoughts) in non-clinical populations?