Not defending the prequels but that isn’t necessarily true. Showing anakins son learning what the force is for the first time is worthwhile even if the audience already knows.
I have no complaints that it is explained in Star Wars. They cover much of the same ground (almost word for word) in Empire as well. But it isn’t explained even once in the PT. So if you watch 1-6 you don’t get an explanation of the Force for four movies! Talk about a slow burn!