No, it's because the pairing wars ruined it, including Kishi getting lazy after the Pein Arc. I mean, come on, Kakashi getting Perfect Susanoo was the mother of all asspulls.
Sakura getting the Byakugou is up there as well. I'm sure it would have been useful against sasori, pain or against sasuke when she went to "kill him". But i like the kakashi ass pull, there was so much butthurt going on everywhere, it was fun to watch.