I noticed missing dishing hammer for sheet metal shaping and caulking hammer for traditional wood ship building.

Professors don’t always teach in their actual area of expertise. I had a German language professor whose PhD was in Philosophy and activity published in that field, in English, German and French journals. It does seem like an odd combination, but probably not a lot of students signing up for a class in usability of buttons, even from the fields you would expect to study them .