The more likely story is that J.D. Power tweaked the survey’s scope to get the result they wanted to publish. By restricting the survey to certain models, price ranges, and survey respondents, and then denying that their published comparison chart has any mathematical relation to the scores, they can justify almost any manufacturer “winning”.
Why might they want to say that Samsung’s tablets are better than Apple’s?
Samsung spends a ton of money on marketing — far more than Apple — and frequently employs unethical marketing techniques. Apple isn’t known to play ball very well with the enterprise analyst or market-research rackets, which often implicitly require companies to pay for their high-end services in order for them to recommend the companies’ products. And publishing a conclusion like this gets J.D. Power a lot of attention in a market that the internet is constantly making less relevant.
With even their apparently arbitrary chart denying their conclusion and the numbers not making much sense, it’s at best a desperate stretch. They’re not even good at this game.
[And more yuck, from the “who can you trust?” dept.]