MIT admissions is still very holistic. SAT/ACT scores really function only as a threshold below which the applicant is basically and auto-reject. But so many MIT applicants have top end SAT/ACT scores that they have to review applications subjectively and holistically.
Of course, holistic review does not necessarily mean that any particular criterion is used or not used. For example, holistic review at Harvard includes consideration of legacy status, while that is not considered at MIT. A US college focused on looking for the very top end of academic strength in its applicants may have to use holistic review to find what it is looking for, since typical US high school stats (GPA, rank, SAT/ACT scores) are insufficient for that purpose at the top end (Caltech admissions is probably pretty close to this).