At that time, Shuangshuang didn't learn this to guard against encountering an Array Master, but because it was a compulsory course in the sect. She had no choice but to learn it. Since her mentor, Ling Wuchen, was also not adept at arrays, she learned it during classes at the sect.
However, Shuangshuang didn't learn much because the person who taught the array class in the sect was really too dull, completely incomparable to her mentor Ling Wuchen's teaching methods. Moreover, learning arrays was boring, not to mention having to face the vast array of computational methods.
