I don’t understand why some of you think the mind trick is too far fetched?
Kylo Ren is “interrogating” her with the force, he is in her head, the scene goes on and on and on, while you watch her struggling at first but then beginning to push back. And suddenly she is in his head. She feels his fear and insecurity. She heard stories about the Jedi and maybe about the mind trick. So, she read the mind of a very powerful opponent, so why not try influencing a strormtrooper? I thought it was believable.