You've got worldwide universities churning out masters and pdh-level educated persons, who mostly go to the private sector for employment. Many of those would be perfectly able to perform peer review. And with this p-hacking crisis, mostly due to abject statistical knowledge, there are literally millions of technically able non-scientists able to review this nonsense. Any physicist, econometricist, statistician (and >100 more technical fields) could kindly take a shot at the social science methods in dispute here.