Have you ever read an actual book? Books can go into great detail on things that there simply isn't time to do in the movies. Giving a backstory on something as iconic as a lightsaber is neither absurd or gay shit as you call it. Just because they didn't go into great detail on everything in the original triliogy doesn;t mean it isn't worth visiting down the line. The construction of a lightsaber is pretty fucking interesting and doesn't need to be kept as some fucking stupid mystery to preserve your childhood.