OMG111111 I do not understand teh Statistiks!!11111
Seriously... Apple, Dell, and everyone else, their brothers, and any pets they keep who engage in OEM'ing computers, use HDs from the same small set of manufacturers. Barring things like bad power supply to the disk, there's a statistical distribution of performances. Google even recently demonstrated that temperature has little to do with failure rate. Some of the units last 10 years and some of them fail. They manage the overall rate of failure and the MTBF. But they can't guarantee that you'll never get a bad egg.
I'm sorry you got a bad hard drive. If it helps you to hate Apple, enjoy. But in the long run it's a better investment in yourself to actually understand the technical limitations and commercial landscape so you can understand what does and doesn't happen and who you can blame in each individual situation.