MUCOM operates the most open and accessible admissions process I've encountered. It's clear you're perplexed regarding your status on the alternate list, but please don't project your feelings as gospel. There's nothing mysterious about it - they offer admission to applicants they feel will fit best. The people who run the admissions department are just that - people. Dissecting every aspect of your application and making constant comparisons to the prospective students of the next fall class will bring you nothing but stress. Focus on becoming the most genuine, interesting, and qualified applicant you can, and stop worrying about if you have exactly whatever it is you think they're looking for. And please, stop giving advice without the experience to back it up.