[PeterisP]

As the article mentions, a lot of the "most popular jobs" is determined not by the popularity of the industries but by the fragmentation of jobs. If you have 20 people working on shoes and 40 people working on clothing, then if shoemakers are a single profession/guild but clothing has 10 people each working on a different stage of the product (which actually is the case, with the most labor-intensive tasks of medieval clothing production being in the multiple stages of making the actual cloth, not tailoring it) then shoemakers become a more common job.