I'm not saying you don't know a thing or two, particularly with your experience on AT&T.
I myself have been on Sprint for 15+ years so I know a thing or two about how Sprint operates (and pleasing customers is not one of those things) as well.
That said, here's some info about AT&T CEO Ralph de la Vega in late 2009.
From the outside looking in this certainly seems to me (both at the time and now) in conjunction with all the articles about San Fran and NY and how impossible it was to even use the iPhone in those cities, like AT&T was blaming the customer.
If I'm wrong, ok. I was never an AT&T customer. But it sure looks like a duck and it sure quacks like one.
ATT ceo was making up excuses up his butt if u know what I mean. It's been proven time and time again data hoggers do not use during peak hours. Most data hoggers consume data off peak time. So ATT is making up stuff to make it look like data hoggers congested their system.
Their system just could not handle the basic demand from regular iPhone data users especially during each launch.