Clearly said by someone who has never done a massive document review....
I'll just say I can guarantee that not a single member of Congress would actually be willing to do that. Although what might happen at some point is that DOJ will permit a limited number of people designated by Congressional leadership to review those documents.
But it absolutely will not be members of Congress themselves, nor should it be.
Normally in such matters (massive documents) they rely on trusted members of their own staff to do most of the heavy lifting.
That said—the administration has zero credibility at this point. That may be unfair—but it is the way it is when you do 180 turns on stuff.