there are many reasons why somebody may want to make own approach plates and if you can only think of "dumping all the stupid ballast called "JAR-FCL" and "training syllabus" that says more about your way of thinking than of the posters
thinking outside of the box and knowing how to do it absolutely safe will for sure increase anybody's chances for getting and keeping an airline job
not to mention that practicing an ndb approach at a high altitude gives you an increased margin of safety