If Amazon exposed any data fields more sensitive than email address, I would call that stonewalling/covering up as TC seems to be implying. But otherwise it kind of just sounds like TC being all petulant that Amazon wouldn't tell it everything it wanted to know. And the motivation there is likely to be the generation of clicks, not the protection of customers.
Take the "number of users affected" for example. Knowing that info doesn't help any individual customer. But it does help journalists drum up pageviews, or at least I feel like they believe it does. Having a big number in there is like this (dubious) Holy Grail of page-irresistability. I'm just judging from how, for example, the reporters on the TV news always bug their eyes out and raise their voice and talk really slowly and emphatically any time they come to a number. "The pool was reported to be FOURTEEN FEET DEEP..." "The petition has THIRTY THOUSAND signatures..." Wow! A number! I'm supposed to be all impressed I guess! ZOMG let me throw all my money at you right now!!!!