Blue-Eyes is powerful on paper, but when you compare it to the rest of the top decks it lacks consistency. The deck has to run multiple high level monsters that cannot be summoned on their own, making the deck struggle both going first or second, depending on the opening hand. Just having big monsters out on the field means nothing to a monster like Koa'ki Meiru Ice, a common threat in the format.
Blue-Eyes is likely to suffer from increased usage of Red-Eyes after its exceptional RRQ performance. Blue-Eyes struggles to out a Red-Eyes Slash Dragon equipped with Buster Blader and either Black Metal Dragon or Power of the Guardians. The deck may have to resort to using Beatdown to climb over an equipped Slash.