It all depends on how one defines logic, but I agree to a certain degree..... You are seeing it only from your view as you are a Sasuke fan, and feel it is his right to have it, correct? If so...there is nothing wrong with this, but it could also be seen as the one tech needed to confuse his rivals eyes.....
I'm not too keen on Naruto, but only from my limited view of his character.... If asked I'd be stymied on wether Shadow Clones or Rasengan was his main offensive technique. XD
Kishi is human like us all.....he is just as wishy-washy as us all. We are constantly changing our minds, seeking new paths, seeing from different perspectives, etc. He may have said they grow as a pair, but he may feel differently at times..... I doubt he's a robut..... XD
Just messing, though he may be sad, angry, or just upset at times, and it could influence how he feels of certain things is all I'm saying.... I highly doubt anyone is perfect enough to be absolutely consistent in the things they say, without any falter or fail.