For what it’s worth – and this is presumably not the school @exlibris97 was referring to – Oberlin said in an information session in 2015 that it will reject students in the ED round who could have been admitted if they had applied RD. Another school which takes this approach is Notre Dame – it is well known that ND rejects students EA who would have been solid candidates for RD round, and that is why ND applicants should talk directly with their admissions rep about the preferred strategy for their specific application.