The paper being discussed: Iddekinge et al. 2019
Chad H. Van Iddekinge of Florida State University and his colleagues reviewed 81 studies to investigate the link between an employee’s prior work experience and his or her performance in a new organization.
They found no significant correlation between the two. Even when people had completed tasks, held roles, or worked in functions or industries relevant to their current ones, it did not translate into better performance.
The conclusion: Experience doesn’t predict a new hire’s success.
My rough impression is that some EA orgs are better than most firms re: not weighting prior work experience highly, though it's still a factor in a lot of EA hiring processes.