Where did you get that from? I did check in the first build whether it aGI's "thrust attacks" like in SCIV, and it didn't. So has it been added to the E3 build now?
In SCIII & IV her A+B aGIed ALL Mids. I thought with Sophitia returning in SCVI that she'd aGIed ALL Mids like she did in SCIII & SCIV. So her 6A+B is just like the Pyrrha's in SCV. Sophitia was always Top Tier, but with Sophitia not aGIing Thrusting Verticals with 6A+B & the TAS B(Lethal Hit) nerf proves that Xianghua is the best character in SCVI, because she aGI's ALL Horizontals & Mid Verticals to get huge damage unlike Sophitia.