Chocolate

Though the English subtitles on the copy I watched were nearly indecipherable, it seemed to me that the point was that her autism allowed her to absorb the fight skills of whomever she watched, and though the filmmakers couldn't afford to include clips from Bruce Lee, Jackie Chan, and Jet Li movies in the film, I thought it was clear that - in addition to watching Tony Jaa movies, she had been watching Bruce's, Jackie's and Jet's. In the ice-house scene, she's clearly mimicking Bruce, just as she's clearly mimicking Jackie in the next scene with the locker doors and the knee-slide under the glass table. Then, in the next scene, she does some pole fighting that looks to be modeled after moves by Jet Li, and then, she starts doing some Tony Jaa knee and elbow work. She also defeats the spasmodic guy by almost instantly memorizing his style, and then she watches (her dad?) take on a bunch of baddies in a sword fight, and immediately picks up a couple of bludgeons, using them just as he did his sword.

In other words, I thought the mimicry was not only intentional, but intrinsic to the plot.