I have a feeling it is far more "the challenge of the role" for Melissa than anything else.
As far as "Patriot's Day" it ran as long as most movies. The time span of movies in theaters today is almost 1/2 what it was a decade ago. The movies today can make far more on DVD and On Demand/Netflix/Amazon programming....the day of a movie in the theaters for more than 2 months are gone unless you are a Star Wars movie, of course.
"A good teacher is like a candle, it consumes itself to light the way for others"