
This representation of Asians as always being smart, like any stereotype, is harmful because it allows people to assume they will always be worse (or better) at something just because of their race. So, if/when someone Asian is smarter then someone of another race that person can blame it on the "other" without feeling like they need to change anything in themselves. Instead of, say, studying harder they instead just get mad at the person who did better then them and thereby don't learn anything at all.
This definition is harmful to Asians as well. If they are constantly told that their race is smarter then others, they may start to feel that they always have to get a perfect grade, since, according to this stereotype, all other Asians do perfectly in school. And if they do badly in a class then they may believe they are abnormal, or that something is wrong with them, therefore making them feel that they aren't living up to the expectations everyone has of them.
Personally, I study very hard for my classes, not to ruin anyone else's grade, but to get as much out of my education as I can. And (at least last time I checked) I'm not Asian. Maybe now the definition of "curve setter" should include white women as well, since they aren't going for accuracy anyway, and then they can add sexist to the list of stereotypes they believe.