Just looking into it a little bit, it would seem Obama undid an executive order Bush put into place that was more restrictive on accessing former presidents' records. I don't see how it sealed this records to a further extent. A lot of people during Bush disagreed with his version of the presidential records executive order and tried to reverse it but failed. Obama returned the rules to what Reagan's version said.

Maybe I'm missing something, but if a meme is mistaken, even about Obama, someone should say something.