7 hrs 35 min a week that has to be a joke. I know I wasted a lot of my life reading and trying to make sense of that trash, but never spent that long.
You are being manipulated. You might think you are getting away with something, but they know going in most won't meet such unrealistic expectations. It doesn't matter to them how much useless study you engage in or how many not at homes you knock at, as long as you don't question things or stop donating.
The goal is to keep you too busy to question things or too guilty to question things, either way they win.