So there's no reason to assume there's nothing new to learn about the JFK assassination or that original government conclusions can't be changed.
I don't follow that logic. It's like saying because someone won the lottery, that you are going to win the lottery. I'm no expert on the Malcolm X assassination but did these guys leave their gun at the crime scene, have no alibi, lie to the cops, kill a police officer less than an hour after the assassination? Oswald did all those things.