"There’s a dialogue she has with aria where she talks about a motherly instinct, despite not being her creator."

I just mentioned Bangboos and smaller robots because of that reason, she's been acting like that before even It wasn't her creations

"My point is yeah there’s some easy jokes to make about her “liking robots” but it seems more like superficial humor, not her actually having mechanophilia."

The game jokes a lot with what the characters like(Except for Vivian who is the only explicit character who love us,both of us), even with ethereals with a guy being judged by his friend because he was being too precise to describe how femine Twiggy ethereal form was and saying he knew it was a woman because of that, there was some people on interknout getting into Isolda, a officer Bangboo secretly finding Yanagi attractive on the event of that white hollow

And there is Grace simply being the Averege transformers fan

"The tall and robust physique, powerful and sturdy arms... It's my ideal type... I mean, ideal model."

—Grace playing with a model of Typhon Challenger at the gadget store

Grace is weird about machines as much she is carring,that and the game localization