So i think the byakugan is so underrated in the series I mean out of the three great eye jutsu it can see the best. The Sharigan got way overpowered in part two. I think the reason the author never wrote a super powerful huga is because than he couldn't use the Uchiha for the main villains because when you think about it a byakugan user has resistance to genjutsu cause they can see their own chakra being disrupted and stop it. Not to mention that neji stated that the gentle fist can be used to destroy anything made out of chakra (cough*...Susanoo... cough*) Now that we see Kaguya has the Byakugan I hope to see more of its full potential and who better than the strongest person in the verse to do it