Calibre has had a comically obtuse and amateur UI for over a decade. I don't think anyone working on it is spending time on a grand beautiful UI redesign (which would be really hard, both in effort and in politics). So I don't think it's fair to complain that anytime someone adds a feature you don't use that is taking time away from UI work.

I wasn't complaining, I don't mind whichever feature an open-source freely-available project I use weekly wants to work on. I did suggest these features might have taken some effort, and opportunity cost dictates it wasn't spent elsewhere.