Unless you know the student's entire profile it is impossible to speculate on his admission based on stats such as SAT scores.
The MIT crew team is known to have some of the highest average GPA of any of the varsity teams and much higher than the average MIT student, even though they are Div I. The assertion that somehow they may be admitted based on lower academic standards simply does not hold.
What to Expect at MIT - MIT OFFICIAL ATHLETIC SITE
Unless students receive a sports scholarship, there is never a contractual obligation to play once admitted. That is true even at schools that DO recruit such as Harvard.