Do you think the average Tesla customer is going to want to wade through a bunch of plots of battery charge vs distance, etc? I think the takeaway for the average Tesla customer might be along the lines of "hmm, this seems really complicated.... am I going to have to keep the heat down while I drive even when it's 10 degrees outside?"
To me, Musk comes across as an out-of-touch engineer who keeps trying to argue the technical case and insists it's the customer's fault--it couldn't possibly be a faulty design, confusing U.I., or marketing not realizing a common (mis)use case. If I dropped $60-$100k on a car and run into problems, this is the last thing I'd want to hear on the other end of the phone.