Colleges want more information than just GPA and SAT score. They want to know what the student has done and can do. Senior project is too easy. Senior project is too hard. Senior project is too time-consuming.
Every student can achieve to some level and deserves appropriate recognition.
One diploma with earned endorsements. We cannot legislate world class performance. Issue a diploma with scores, period. The CoM is mandated at the state level. Worried about the impact on home school students and private school students who are not required by law to earn the CoM for graduation, but employers and colleges may require for hiring and admission purposes.