You may not personally like the choice of actor, but obviously Lucy's baby made it, and naturally fans want to see how the grown child turned out. The quirk of the character is living his life as though he's a young Brando as played in "the Wild One." And yes the scene was a bit long.
Fire Walk With Me
In my opinion, the whole point of the long boring pretentious speech was to say out loud: the father is Dick Tremayne. Like father like son.