You are second-guessing Trump on actions he took, when you have no intimate, or personal knowledge of the reason he made them. It's been sixty years since JFK was murdered by the CIA. I was a teenager when he was murdered. I don't need to have the documents released to know that. If you're expecting someone to go to prison if the truth is finally aired, forget it, because the people involved are either already dead, or are so old, they'll never be charged. At this point, it's a waste of energy to be upset with one person over something so stupid as releasing documents that won't tell anything new anyway.
Oh, good grief. You are what? Being critical of someone on FR second-guessing President Trump? LOL! It happens to all politicians on FR.
As far as this issue? President Trump is the one who said he would declassify the remaining records, then did not. No one compelled him to say that.
It's perfectly reasonable to wonder why that occurred, or be critical of the decision either way (depending on what side of the issue you stand).
President Trump did the same think with "Lock her up" re: Hillary. Except there he fundraised off of that, and after being elected decided to not investigate her.