I don't understand what you mean about it being completely different than any other instance. The only difference is that they didn't do something at the end of the movie to reverse the change. That doesn't change the physics. Hell, if anything, it's far more believable than the fact that every time some previously unknown physical phenomenon rips through the fabric of space and time, them clever Federation folk manage to find a way to reverse it within hours or days.
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-TJ
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