Well, hmm. I've been reading along here, and as much as I would like to agree with this, I have to say, no -- this is simply not true. At all.
I have, for most of my life, been the "technical" guy in my family. I was the kid who could reset the timer on the VCR. The guy who could install or update your computer's OS. And yes, I even get called by some relatives when their TV has a problem.
People don't want to spend an hour learning how to set up their devices. They want to flip a switch and have it work. I know I always point to him, but yes, Steve Jobs had a point -- Apple's fortunes really took off when it started producing products that had less features than before: an MP3 player that only had five buttons on the front, and only allowed you to select commands from a tiny menu of choices. A cell phone that completely ditched the keypad, and used a big, cheery screen with a simple finger-painting UI. And yeah, their tablet and TV devices continue this progression.
So yeah, the big corporations don't dumb-down their electronics products because they worry about what smart folks might do with them. They artificially limit what people can do with their products because simpler-to-use products sell.