I think we can all agree on that last thought, MB. Plus, Mrs. Johnson is constantly referenced, and Angelique is at the center of the plot, so it probably makes up for lost screen-time.
Like I said, there is a ton of stuff in the film relating to Vicki, but it's so low-key, it gets pushed to the wayside. I think if Vicki were more central to the plot, I'd feel better about her place and her "destiny." If nothing else, Twilight probably sealed the deal with downplaying Vicki's part and upsizing the presence of Angelique.