I don’t think you need to be ashamed to want to be a passive learner. Even in class and during discussions I’m really interested in, the temptation is there to just soak up the information to regurgitate it later (especially when I’m averaging 3.5 hours of sleep). We can’t be critical, investigative learners with ever subject and every topic out there–Who’s got the time/energy for that? We have to figure out what is important to us and our future life/career goals, and the rest will have to take a backseat.
I teach Public Speaking, and multiple times I’ve had students mention their “more important” projects or classes to me. It’s irritating in the moment to think that my students aren’t giving their all to critically think about the concepts and components that make up PS, but, on reflection, I know some students are just interested in gaining experience and confidence in PS. They save the critical thinking to those “important” in-major classes.