It does work. Maybe not the way YOU want, but it does the way TESLA wants. Many of us have no problems figuring out how Tesla wants us to make AP work. Just like figuring out how to make the radio work. If you refuse to do it according to directions, it doesn't work. I never seemed to have a problem with it. Works fine for me. What ever that's worth.
Yes, it does "work" and defintely not the way I want it to, but I'd argue nobody wants it to work this way. Here is how it works: You have two choices if you want to use Autopilot on straight roads. (a) You can hold the wheel with one hand. This works great but I don't think it's safe. (b) You can hold it with two hands and stare at the dashboard screen to be able to see and respond to the nags. This is obviously unsafe.
I don't think Tesla WANTS it to work this way. This is clearly shitty design. They are stuck between a rock and a hard place right now -- they optimistically designed the system for "full self driving", thinking it was going to be so awesome that they'd never have to worry about nagging drivers to pay attention. This turned out to be, well, overly optimistic, and a few people died. Now they are staring down the barrel of Uncle Sam's regulatory rifle and trying to do something about the problem, but because of their optimism early on they really have no good way of detecting hands on wheel, or any other way of detecting driver attentiveness. (It's kind of expensive to do this well.)
So nobody WANTS it to work this way. This is a shitty compromise and there's no good way out of it.