While this controversial game is quite unsettling, I really hope we can respect it for what it's trying to do, educate. It's a historical reenactment game, the developers didn't go "LOLOLOLOLOLOL HAI GUISE U GET 2 SHOOT JFK!1!!1" I think Ted Kennedy took the wrong side of the game, and left the education reenactment part behind.
I highly doubt this was meant to be educational. Educational would be showing kids a documentary on it or something, not placing them as the presidential assassin terrorist and letting them kill whoever they please.
Edit: Ah, I see now that I've played it. It was made mainly to try to dispel conspiracy theories. I still don't quite uphold that as "built for education"