That's funny, because Squaretrade reports a
1-year accidental failure rate on the iPhone at 9.4%, and that includes
all accidental damage, not just glass breakage. Considering their sampling pool are people who have purchased warranties and have an incentive to make a claim for damage because they've already paid into a protection plan, I doubt the data would be biased in favor of low incident numbers. If anything, I would expect there to be a bit of nitpicking, fraud and deliberate damage peppered in those figures, inflating the number a bit.
Granted, that's 2.7% higher than comparable Android phones, but that's still a far cry from 50%.
Honestly, I doubt people would be buying iPhones for very long if you had a 50-50% chance of breaking the glass.
Anyway,
I did a Google search as you suggested. No dice on that 50% story.
Hmm, I've been using a 4 and later, a 4S day to day, without a cover, since iPhone 4 launch day. Both have stood up just fine.
I guess if using my device without any protection, dropping it a few times and not suffering any shattering or appreciable damage is "drinking kool-aid," guilty as charged.
If you believe it's flawed, maybe you shouldn't use it.