I agree. In fact, I posted something similar earlier. Great minds think alike

And you're right it's not a slam dunk. I think the prosecutors will need to lead the jurors very carefully through the body farm evidence, which is pretty dry and technical. However, I think a talented prosecutor might be able to sway a jury, and again, chloroform and access to that trunk are the keys.
Also, For as mad as we get at KC about all her partying and callousness, it just might help her get convicted. For most jurors, I imagine just the fact that KC never reports Caylee missing to the police, and never even tells her family or close friends is going to carry a lot of weight. Some jurors however might say "Well, maybe it was an accident and she was too afraid/ashamed/upset to talk about it..." But then let the prosecutor bust out the Fusion pics, the Lake Vaj pics, the "come out and party with me on Friday!" texts, and I think the jury will see that this was not a frantic mother desperately searching for her child, consumed by the need to find her and bring her home safely.
Anyone read Sharon Rocha's account of her days when Laci was missing? KC better hope none of the jurors did, because that is the account of a grieving mother. KC's behavior resembles Paris Hilton more than Sharon Rocha.
Wonder what JB's defense will be? If he goes with accident, KC would have to take the stand, no? (You think JB's worried about suborning perjory?)
Or will he go with something like "KC's ill, but she didn't do it. She didn't report it or act normally after the disappearance because of her illness, not because she's guilty". Will it still be the one-armed man - oh wait, wrong patsy - I mean ZFG???