I think it is pretty cool and allows a beginner to at least backup without wrecking anything. Folks who actually tested it seemed to like it. It doesn't even look like it will be expensive, so why not?
Our immediate impression of this technology is that it will be a boon to novices or first-time towers, a group of which your author is a member. It takes the mystery out of backing up a trailer, and while there's still a learning curve involved, it's significantly easier than doing things the old-fashioned way. The knob itself is easy to modulate, allowing drivers to make fine adjustments to the trailer angle as needed. You still need to have your wits about you when using the system, but in general, the overall process is far more straight forward.
http://www.autoblog.com/2015/05/21/we-test-the-2016-ford-f-150-pro-trailer-backup-assist/I suspect many thought the automatic transmission was ridiculous at first.
Mike