Wow.
That tire sure was nice to fail in such a way on your driveway.
Doing that on the freeway would be the pits.
This summer I had an alarm go off on my Mazda3's tire alarm system. So I stopped and found that all four tires were fully pressured. A puzzle. So, I ran my hand over the treads and found a big bubble on one of the tires, probably getting ready to do what yours did.
I was lucky because my car's tire-warning device is not alerted to the pressure. It's alerted to a rolling-speed differential between the tires as reported by the anti-skid braking system. The damaged tire was rolling at a different RPM than the others due to the circumference changing because of the tread fault.
Sometimes luck trumps everything.
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