Song Ronghui's Second Victory

It seems that Song Ronghui (1 dan) from China is not going to be stopped yet. In game 2 of the second stage of the 7th Jeongganjang Cup, Song Ronghui beat Aoki Kikuyo (8 dan) from Japan.
Taking white, Song won the game in 178 moves.
Aoki Kikuyo chose to play the low Chinese fuseki. Instead of the standart 2 spaces high approach against low Chinese, Song Ronghuiprefer to play the 2 spaces low approach which was invented by Yu Bin (9 dan) from China. I think the pincer Aoki played as the answer is not good. Instead of pincer, maybe she can play the variation.
For some reason I think Aoki played a passive game, while Song did very good in this game. At the end, Aoki resigned the game. The gap was big. About 15 points lead for white.