He didn't say it was definitely pineapple, he said it might be though.
But he also didn't mention that it MIGHT have been anything else, just pineapple.
You seem set on the time line.
They left the White's at 8:30 and dropped by some other places on the way etc. They said they didn't stay, just just dropped off some gifts.
http://www.acandyrose.com/s-jonbenet-timeline.htm
8:30pm.
We have established that pineapple takes, what did it say, 2.25hrs to leave the stomach (of an adult)? Which this had, it was in the small intestine, but still in a condition that allowed the ME to say it might be pineapple.
Not warm liquid goo phase, still identifiable enough for an expert to suggest it might have been pineapple. Claimed to have been eaten an hour and a half - two hours before she died.
http://jonbenetramsey.pbworks.com/w/page/11682517/The Pineapple Evidence
So let's regroup.
It looks like pineapple.
It hasn't digested to the extent that an expert can suggest it is pineapple.
The digestion from the experts suggest it was eaten about 2 hours before she died.
No pineapple was served at the White's place.
There was pineapple, not in the fridge of the Ramsey's house, but on the actual BREAKFAST Table...with a spoon in it.
Keeping in mind, JonBenet was female, females digest faster than males.
JonBenet was 6, there is less distance for food to travel.
Nothing? Anyone?