Dutch journalist and skeptic Piet Hein Hoebens has criticized Bender's investigation claims of the Rosenheim Poltergeist, saying that "No full report of the investigations has ever been published, so we are in no position to check to what extent the parapsychologists have been successful in excluding naturalistic explanations."
Skeptical investigator Joe Nickell described Bender as a paranormal believer unwilling "to draw the obvious conclusion from the evidence."