I thought about that Faye face, and I looked again, and I'm not sure it's all that disturbing.
I mean, that is one possible interpretation, but another is that she has found a job that is a perfect match for her skills, and she's simply really enjoying doing something that she is good at and that not everybody else could do, not only for the required skills but also because she doesn't apparently have a problem with the context.
And after all, she is doing repairs, not damage, like an army surgeon.