Your chances of being admitted to the MEng blended program at MIT will depend on various factors, including your performance in the online Principles of Manufacturing (PoM) courses. While doing well in the PoM courses can increase your chances of gaining admission, it is important to note that admission decisions are based on a holistic review of your application.
MIT considers multiple aspects of an applicant's profile, which may include work experience, undergraduate transcript, writing capability, life experience, as well as standardized test scores such as TOEFL (Test of English as a Foreign Language) and GRE (Graduate Record Examination). These factors, along with your performance in the PoM courses, are taken into account when evaluating your application.
It's important to understand that admission to the MEng blended program is competitive, and the evaluation process considers a range of criteria beyond academic performance alone. Therefore, while being an average performer in the online courses may not disqualify you, it is beneficial to strive for excellence and demonstrate a well-rounded profile in other areas as well.