I would say certainly suspect at the minimum. He had be involved with the Olympia behind the scenes for a while by then. His entry was also a last minute surprise (as I recall the story going) he was never announced before the show. And at the show he kept doing wrong (but strong for him) poses instead of the called out poses. Like doing a side bi instead of side tri, saying he couldn’t hear the announcement properly.
add that to his 1971 win (all be it he was in great shape that year. Great) but he was literally the ONLY one competing for the title. Everyone else was disqualified before the show. So not sure I’d call that a competitive win either.
so 7 titles yeah, but I’d say he only really won 5. 2 where handed to him. IMO.