Oh, I know that no matter how many outlines, drafts, and whatever else you have to organize the story you intend to tell that the minute details that need to be added to help said story come to life and flow together does require the majority of it to be written up on the spot. A guy needs his hobbies in order to stay sane, after all, and writing just so happen to be one of mine.
With that said, someone who (claims) to be working on a project full time should really have enough of a plan moving forwards to avoid picking a cliche at random and deciding that will be their entire writing. The particular example you referenced isn't a sign of rushed development, although is can sure as shit be a symptom of a larger problem, that being the author either doesn't care about their story or has gone creatively bankrupt. While writing by the seat of your pants is a valid tactic... not everyone can do it, and a writer should know their limits and whether or not to avoid this.
