Precisely. This isn't about elemental or other Ninjutsu advantage. For instance, take Samehada away and Bee absolutely destroys Kisame. As, not only the sword moved on its own to rip out Bee's Chakra, but it merges with Kisame as well. So, at CQC, the sword's speed compensated for Kisame's much slower reaction rate. And his Ninjutsu absorption ability made up for Bee's fire power.
On plain CQC level, speed is everything. Without anything to compensate for Hinata's complete lack of speed feats, she's blitzed and plummeted into the ground before she even blinks. She needs reaction rate to react and hit Sakura. It's common sense, if anything.