I felt it was kind drawn out too. Like showing us a hundred times about sols. Maybe it was a way for Ridley Scott to depict the beauty of the planet. They probably also drew out Matt Damon's suffering to indicate how grueling it can get living there for about 3 or more years. If we found it to be boring, imagine how much more boring it must have been for Watney lol unless he had some reefer to keep him happy lol.