스스로 '비주류'라고 말한 건 '주류 무용계'라고 할 수 있는 직업무용단이나 대학에서 활동하지 않았다는 뜻이다.
When she said that she was non-mainstream as to herself, it means that she did not work in vocational dance groups or universities of which can be called the mainstream dance circles.