This lawyer is very young, and inexperienced. That said, what experience could you have that would totally prepare you for these events. She is stating things now because she recognizes she didn't help him and possibly hurt him. There is very little lawyers in many states can say to the media -- until the case is concluded. But, without doubt, she could have done more to protect his image in state court.
From all appearances, Nassar is a guy mostly having high social intelligence. If you met him, most likely you would be drawn to him. She probably likes her client, and feels badly for letting 156 women give statements when that seems to have been a foible on her part, and she didn't anticipate how bad it would reflect on him. But who knows what led to all this . . . maybe he wanted that and felt he needed to hear it . . . but . . . that amount of publicity, even in protective custody, could endanger one's very existence in prison. Nassar has endured in this litigation more than most men could endure and not commit self-harm.
His life is in prison now.
I think I'd like to help someone write a book on preparing for prison life, someday. We see reports of suicides by people in that position. The least of us may deserve scorn. But the very least of us may also deserve compassion, as well.
Almost all of us have capacity for redemption, and to improve the lives of others, as well as our own. I hope Nassar can in some way redeem himself, but if that happens there will be little fanfare about it.