I tend to be partial to how "Wangero" suddenly wants to over-do her heritage and merely focus on the aesthetic and fashionable, rather than on what really matters about it. It reminds me about every person who claims Irish heritage in St. Patrick's day and literally want to be more Irish than a shamrock. However chances are that they do not even know how to locate Ireland on a map. I feel that a good thesis would then be "cultural heritage versus aesthetic heritage: the case of Wangero". This would give you ample room to point out how silly her entire argument is on wanting the quilt in the first place.
In the Philippines, an academic thesis is named by the degree, such as bachelor/undergraduate thesis or masteral thesis. However, in Philippine English , the term doctorate is typically replaced with doctoral (as in the case of "doctoral dissertation"), though in official documentation the former is still used. The terms thesis and dissertation are commonly used interchangeably in everyday language yet it generally understood that a thesis refers to bachelor/undergraduate and master academic work while a dissertation is named for doctorate work.