There's a difference between realism and logic. Alot of what happens isn't realistic, but that doesn't mean it has to be illogical.
There's a limitation to that justification. If that's all that's necessary to justify it, then why stop there? Why not have him acquire it in a day? Why stop at toad form, let's give him more Kyuubi control and spiky hair and lightning to boot. If logic is to be discarded then there shouldn't be a problem.
Moreover, it should cut across characters. I don't see how there could be any objection to Sasuke's development and acquisition of the Mangekyou, except that it's not fair for Naruto. I'm under the impression that people would be considerably less deferential to any lack of logic if the person receiving the benefits of it had black hair and a deceased family.
I don't care if Naruto and Sasuke end up the strongest, I do care if ends at a point where we could say all those SuperNaruto fics had it right with the rest of the Jonin and rookie nine so far behind that they look like academy level genin.
Seriously, in essentially two weeks worth of work he's acquired Sage Mode and RasenShuriken. If he decided to train using that method full time, what's the stopping point?
I agree
One qestion popped on my mind. Now that Naruto has Yondaime like coat will that mean the toads has told him about his heritage?
It's just that if you get something like that, what has so undeniable link to someone pop-out any questions...
I doubt it. He had a minute to react before poofing to Konoha
Fukasaku: Don't worry Naruto, the three of us can summon something really big
Naruto: Really! What is it!
Fukasaku: Hold on Naruto, we're gonna reverse summon
Naruto: YAY!!
Fukasaku: By the way...your-dad-was-the-fourth-hokage-and-he-sealed-the-kyuubi-which-made-your-entire-life-miserable-into-you.
Which is why I don't really get all of this sudden complaining about Naruto being 'too powerful' all of a sudden. Especially after a year of complaints that he was 'too weak'. As you said, this is just how the genre of Shonen is, and I really don't understand why people are now expecting the genre to act differently than how it's always been. This is how DBZ was, this is how Bleach is, and this is how Naruto is as well, and you know what? All 3 of these series are at the top in terms of popularity and enjoyment, because people just enjoy them for what they are, and don't read them for what they 'aren't'.
How is Bleach uneven? The main character is still getting pwned by the bad guys...IMO, Bleach is the only one out of those three that has reasonable-power-upping.