If there is a bunch of different frames of footage in that second or two where the paper is visible I bet there's some NSA or google team that could use machine learning to find the common denominators from all the frames of that paper to get something a bit clearer. Just a guess but I think it probably still wouldn't be readable.  But yeah you're right about trying to enhance or sharpen something useful from a single low-resolution image. Someone good with fine-tuning might be able to improve it a little bit... but if you start with shit there's nothing photoshop can do for you.