I'm the one that said usually, Feynman didn't have that cop-out and he was specifically talking about social science:

https://www.youtube.com/watch?v=tWr39Q9vBgo

Worth watching the clip so you can hear the argument directly. IMO his point is that peer review is not what makes something science. Nor are studies, publishing papers nor p-values, even gathering and reproducing data is not what makes science science.