For clarification: Here is the exact quote and link
“That’s immaterial. Standardized test scores are not qualifiers. They are not important achievements in and of themselves. There is no difference, for our process, between someone with a 750 and an 800 on the Math SAT II. Literally no difference. Once your standardized scores are sufficient to predict success at MIT - to show that you are academically qualified for MIT - they have reached the limit of usefulness, and we move on to other things.”
http://talk.collegeconfidential.com/massachusetts-institute-technology/939227-reminder-no-one-not-even-me-can-give-you-an-accurate-chance-at-mit-p3.html