Actually, it is a pretty good point that the hypothesis fails to address: there are similar breaks in the reinforcements along that edge that the Apple and CR tests addressed.
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Did you miss the post with all the iPhone 4, iPhone 5, iPhone 5S phones that have bent? I would say in total throughout the years, we are talking less than 50 phones (and that is giving your camp a HUGE benefit of the doubt).
That is out of MILLIONS of phones sold. Probably over 100 million phones.
Is it a problem? Yeah, a few people have had the problem. A few people have had failed home buttons, power buttons, battery problems, screen defects, etc.
It doesn't mean all people will suffer from the problem, or that there is a design defect. It doesn't mean Apple is a bad company, or made a bad product.
I don't understand the misplaced hate.