Not to nit...but would making Lt. Hawk gay really improve FC substantially as a film...especially "without making it a plot point?" I have no issue with Hawk being gay (in my head cannon, he is), but this is kind of like saying "paint the hallways a darker grey" in terms of how to improve a movie...
Speaking as a gay man, it would have made the film better for me, especially given the rumors flying around prior to the film's release. FC was released at a point in time when seeing a character from the franchise I loved most at the time be homosexual would have made a difference.