MyMajors recommended the same majors I expressed a preference for. Why did I bother?

Your expression of preference was not the only reason that these majors were recommended. Behind the scene, MyMajors made numerous evaluations of all of the other information you shared, to see which majors should be recommended. Very few students get the same major recommendations as they were thinking about. This is probably a good indication that you have been thoughtful in selecting your preferences for a major and that other recommendations would take you farther away from majors you will be happy with later.