Yep, it's very weird. Consumed, listened to... There's ways to say the thing like it is. I guess "read" carries a certain superior connotation so people lean on it.
Note that I do think reading is superior. This is not to diminish anyone who chooses to listen to books. Some people do it because of accessibility, some because of time (can listen while commuting, or in the gym), or they just choose to listen to some books they don't care as much whilst still read the ones they do.
This is all great and people should be encouraged to do what works for them - but please don't pretend it's the same. Sometimes I even think we need a different word for reading e-books.