I don't know where they are getting their figures from, but...
if only there was a thing that existed to tell people what the controls were?
Oh wait, long ago there used to be such a thing that came with newly purchased video games, it was called an instruction manual, but then all the video game companies got cheap and stopped including them to cut costs...
The only video game that has ever given me trouble with the controls was Star Wars: Tie Fighter for the PC and you know how I handled that? I sat down and learned them.
People, people, people 
Same here, I used to start the game installation, then sit back and read through the manual. Two hours of getting the basics? Make that half an hour reading the manual whilst the game was leasurely installing and perhaps another half of an hour getting familiar with actually pressing the buttons, for which things like tutorials are usually for, done.
The decision to quit giving out manuals with games a couple years back was the biggest change to videogaming in the recent years in my opinion and one for the worse, not the better.
The only ones you can find nowadays are either located as .pdf stowed away back in the game folder or hidden behind various menu selections ingame. Not the places an average gamer looks at first thing after opening his box. That's how it was just some years ago, you got your new game, you opened the box and there's two things jumping in your face, the disc and the manual.
The real issue here isn't that games are too hard to learn, it's that they are not documented properly to even give people the option to learn it without plunging headfirst into the water and figuring things out via trial and error.