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 .
I hope so, but they’ll just blame the Dems anyway and their core voters will just believe it.