You know, the medium of film is more forgiving. Though those verses are shoehorned in, as you note, we are less aware in the context of the cuts. The use of montage. It's one section of the film -- maybe the only one -- that amplifies the stage show. As we actually see the Taylor Desiree coping with a not-so-glam life, the verses are poignant. A Sondheim scholar can tell us how differently the NT arrangement is, but I suspect its and the film's are pretty close. The cutting back and forth on the stage is likely far more jarring.