He's dismissive of spending so much money for a humanities degree because it's not a wise investment in this day and age. I don't see his statement as having a problem with the humanities themselves.
I was actually a music composition major before I switched to CS. I don't have anything against non-STEM fields. However, one day I looked at how much I was paying for school, how much I stood to earn, and what hard skills I would walk away with when everything was all said and done, and decided switching to my other love, CS, was a much better way to spend my time at uni.