If "her" wasn't the canonical example of a near-future AI assistant in a film, why then does Sam bother to tweet the single word "her" following launch? I think that film is far more influential than you give it credit for here.

Everyone in tech who saw that tweet knew what it meant - a single word. The tweet doesn't even require additional context or explanation to almost anyone in this industry.

There is also a clear difference in the behaviour of the "computer" in Star Trek vs "her" - what OpenAI shipped is far more like the personality of "her" than the much more straight-laced examples in Star Trek, where the computer was virtually devoid of emotional-sounding responses at all.