With regard to a weak point, the phone would bend there first in these tests if such a thing existed. That's how weak points work.
For him, it's uncomfortable to put his iPhone 6 in his pockets, and he wonders how much discomfort people are putting up with that is causing their phone to bend in their pockets.
Or at least thats how I understood it.
My wife and I stopped in the Apple store today, and she saw the 6 and 6+ for the first time. She has a 4s (4.5") vs the iP6 @ 5.4" is quite large by comparison. "Nope, too big. I want the same size as mine but that thin" was all she had to say about it. It's a bit sad that her 4s is starting to show its age, and instead of a 6 she's likely get a 5s instead.
I think a lot of people are wishing for a 5-sized 6. I'm hoping my 5 will last two more years and that Apple will have a new release by then that's < 5".