I disagree.
Well, I believe the majority of the fanbase would prefer Anakin saying something about giving his saber to his child in Episode III. Any attempt that sucessfully manage to make this work in a fan edit is generally well received, since this increase Anakin’s character.
Besides that, the fact that this Obi-Wan line isn’t adressed in any way before or after he said it, in any movie, just make this fact weird. Why the lie about Vader killing Anakin is adressed in ROTJ and that one, not? The audience then presupposes that that one is a fact, and then after ROTS we discover that the whole story about Anakin giving his saber to his child is just one more lie from Obi-Wan. This just makes we question how many more lies Ben told in the movies, a man who was supposedly meant to be a honorable jedi…