Board Thread:Versus Debates/@comment-30530312-20161118085043/@comment-26537507-20161122174715

It shows you put no genuine thought into the fight. For one Itachi generally uses Susanoo (and therefore TB and YM) as a last resort because it kills chakra levels, causrs immense pain, and makes the user's eyesight detetiorate. When Oro was stabbed with the TB, he was in part of the giant snake form which limited his movement speed, making dodging practically impossible. He also mistook TB for a normal sword, which he can happily tank.

As for Obito, trying to Kamui over Kabuto wouldn't be as unnoticable as you're trying to make out. Kabuto has Sage Mode, which enhances his senses, so he would either dodge or block the attempt.