Some students may consider screening or weed-out by committee letter to be a good thing. While it is not a good feeling to be weeded out, it may be better to have that done earlier by your college’s pre-med committee so that you can switch earlier to your non-medical-school plans than to go through a long, stressful, and expensive medical school application process that will be more likely to be futile than for the average medical school applicant (most of whom get shut out).
Of course, some other students will want to try applying to medical schools anyway, even if the chances are at the low end. Such students should avoid schools that screen or weed out by committee letter.