hannah montana jumping the shark?

despite how fantastic the second cd is, i'm thinking hannah has started to jump the shark.
a show creates a diagesis--a universe--that it must operate in. that diagesis can break every law of our universe, but the workings within that universe must obied by all of the laws of it. every episode of the seconds season (least so in the jake ryan hour long double, but even in that) has violated the rules of the hannah world, indirectly mostly. the show has abandoned the idea that its characters are logical and un-absurd (relatively speaking) in their non-pop star effected lives. to a much less severe extent, they are suffering from a syndrome that is related to the boy meets world collapse.
the stories are loose; there are too many obvious ways out of any created conflict. in tonight's episode ("sleepwalk this way," s2e13), for instance, someone could have reassured miley that she need not be worried until monday, and jackson could have pushed his party forward to a day before monday. those would greatly alter the main plot arch (their refusal to acknowledge these obvious flaws is a violation of the psudo-cannon that the characters are logical). even the small conflicts had too obvious yet still ignored solutions. they could/should have woken miley up during her tirade in class (and why is she adjusting her shirt while asleep? and coming up with witty, non-obvious retorts to kunkle's every word while asleep?), and jackson could have realized that when miley said she was awake she could not have been sleepwalking since she can only tell the truth when she is sleepwalking and therefore would have to say she was asleep (his failure to acknowledge this led to his clanking of pans and dumping water on miley for annoyingly trite comic relief).
sorry if this made no sense. i'm a bit flustered/frustrated.

i'm off to watch entourage. expect notes on that soon.