Just my theory, but considering that tmdsas operates differently then the amcas, as in everyone usually apply to most of the schools, every tmdsas school receive a similar applicants pool. Therefore, schools can't just interview the people with the best applications they received because interview spots are limited. If they all did that, then only the people with good numbers and ECs will get interviews, and since each
person can only attend one school, they won't be able to fill their classes. I think if you have good number, they are looking for something in everyone app to determine how likely this person will attend our school. Whether it be demographic, race, or past experiences. Ie: a person from low income family may place great emphasis on cost of attendance when selecting schools. Since tuitions are relatively similar, the cost of living in a particular area might become a factor. School with strong research program might be interested in you having research. El paso will def give applicant from west Texas and Spanish speaking applicant an advantage, a person growing up in Houston might have more chance to be interview at Uth, or sometimes it is just random tbh... All in all, with good numbers, I should have enough ii to guarantee an acceptance somewhere. If I can't get an acceptance despite my good app, then there is something wrong with me and the other schools, that didn't gave me ii, probably wouldn't want me anyway.
Good numbers aren't detrimental because you are interviewing at Utsw, which is less likely at interview less-than-stellar applicants. I remember from one of your post stating that you're a faculty there; so aren't you pretty much guaranteed an acceptance there? 🙂