I agree that whether or not the NSA can pull records from these companies without the companies meaningfully reviewing each request is a very important detail.
"But the Prism program renders that consent unnecessary, as it allows the agency to directly and unilaterally seize the communications off the companies' servers" is a strong statement. I agree that it is probably not compatible with the details Google has divulged about its "SFTP and manually by human only" process. But that is only one of the many companies.
I understand the "slides or GTFO" attitude that I'm seeing in these claims that the original story is inaccurate, but I think it's a bit arrogant and premature. A journalist who has seen the entire slide deck continues to tell us that the nature of what the whole presentation reveals is more invasive than a digital lockbox with workflow management software where humans meaningfully verify, evaluate, and approve requests. He could have misinterpreted the slides, but I doubt he would stick to the report so steadfastly once all these objections arose if he were not pretty confident he understood the claims in the Prism presentation.
We shouldn't accept that the NSA can grab a user profile without explicit, individual legal approval from the company as fact yet--there's a lot more we will hopefully learn. And how true this is could vary from company to company. But it's silly to ignore that a credible voice who has seen the presentation is telling us something.