I don't like that phrase either, but do you have a direct replacement? Language usage tends toward efficiency, and sometimes I want to speak generally rather than specifically, and so if my options for conveying the idea 'read books and/or listened to music and/or saw plays and/or watched tv and/or ......' are to write that out or to say 'consumed content', I'm probably going to hold my nose and go with the latter, at least once I've heard it enough times for it to feel relatively normal.

edit: actually, and this is just a tangential point, I don't think 'content' covers plays or other live experiences. It's usually screen-based, and the main possible exceptions are things that are almost interchangeable with their screen-mediated forms, like books or magazines.