Not necessarily.

We don't know why shipgirls exist. As I recall, even Skuld doesn't know how it works. It's possible that raising Fubuki and restoring it to working condition through purely technological means would have left Fubuki aware of her ship-self, and able to Return into it, the way that Midway and Growler did.

The problem may be entirely the addition of Buran, and the hard-coded obedience triggers - triggers which I'm beginning to think were put in because somebody in Earthforce thinks that Kongo and Maya are too independent, and thus potential risks. If Buran works out for Earthforce, Kongo and Maya may be sidelined in favor of a fleet based on Buran's design.

Peter Eng
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Insert humorous comment here.