I honestly don't care about this Sophomore Dorm Room stuff, as long as we can all at least acknowledge the role of deniability in messaging security. If you want to argue that email isn't messaging, that's fine, I disagree, but at least you'll be vindicating my "never use encrypted email" argument.
I was more pointing out that the choice of how to move forward isn't simple, and that the premise is probably flawed due to bad design, but that we probably won't fix the design because it works.