The veteran public servant tasked with chairing the controversial 10-month analysis of Australia's retirement income system has unloaded on politicians and industry lobbyists peddling disinformation and baseless criticism of his review's methodology.

Mike Callaghan, whose explosive report on the pension system was released by the Morrison government on Friday after a four-month delay, has defended his panel's conclusion that home ownership and voluntary savings are just as important to sustaining an adequate retirement, if not more so, than compulsory superannuation contributions.