I was at the Genius Bar this morning for an unrelated problem (RIP poor 17" MacBook Pro

). While there I showed the Genius my bent iPhones. He strongly suggested I make appointments to bring them both back after lunch.
When I came back, the new Genius replaced my iPhone 6 Plus immediately - no questions asked. But neither he, nor the other employees he asked, could agree whether the 6 qualified as bent, even though it rocked a little bit on the table. So we agreed to open a new one to serve as the standard. It rocked slightly more than mine - therefore I didn't get a replacement. I was perfectly happy with this, since both phones already looked fine to any casual observer (the Plus rocked about 3mm, and the 6 about 1mm).
My 6's brown leather case (purchased in ~January) had developed a suspiciously uniform stain, as if a semi-circle sticker had been attached to it in manufacturing. They immediately replaced it as well. I guess a percentage of that "Apple tax" we all pay still goes back into good customer service.
So Apple doesn't really have to 'admit' anything here, because they just take care of it. In other words, they
are accepting responsibility for the bending problem, without having to go to court or make public statements. And now I know how much bend is acceptable. I probably wouldn't have bothered to take the phones in on their own. But now I can sell one (or both) confidently - even to a buyer who's particular.
Despite the demise of my 7-year-old MacBook today (which was probably due to the known GT 8600 defect), Apple made me a happy customer today. I'd already found a good deal on a MacBook Pro replacement on Friday (a much faster, like-new refurb 2012 15" non-retina), and now I feel like I've got both phones fixed (with the case).