Hi, Woe.be.gone!
You put a lot of time into all this, I know

I did the same thing with DNA recently in a JonBenet discussion (not about alleles, but about the errors that can occur with the different ways of obtaining DNA results.)
This quote from your post shows why LA was ruled out as the father: "More than two obligate paternal alleles absent is evidence against paternity."
For the sake of brevity, I'm just going to say look at #1, #2, which will correspond to the numbers in beween your slashes in the first post.
#1) Caylee did not inherit a paternal allele- for this to happen she would HAVE to have shown 1 of three results (since a person gets one from each parent) -15-, -19-, or 15,19. She showed 14,15.
I can see where you might at first say, hey, the 15 could have come from LA, but no it couldn't. Why? Look at the only three choices that would happen with a KC, LA combo: -15-, -19-, or 15,19. Caylee is none of these three. See? You have to look at all the results that could happen with the two people. If the child does not show any of these, then there is no paternal allele inherited (or there is an anomaly, which doesn't happen often).
#3) In order to have inherited a paternal allele here, Caylee would have to show as -20-, -25-, or 20,25. She shows 20, 24. (same deal as with #1, no match)
#5) No paternal allele here. Caylee has 12, 13. LA has 14 only.
#6) This one is easy. Both LA and KC are -30-. Caylee would have to show a -30- to have inherited a paternal allele in this instance. She shows 28,30.
#7) KC and her brother once again each have 2 of the same. 14,17. Only choices of inheritance are -14-, -17-, 14,17. Caylee has 14,16.
I'll just stop here, because we already have 5 cases where a paternal allele is NOT inherited.
Even accounting for the occasional oddity, as you see in one place only in #2 with LA, I think you see where I am going. I already found 5 cases where the paternal allele is absent. The statement is "More than two obligate paternal alleles absent is evidence against paternity."
What you would tend to see, if incest occurred, would be a whole lot more of Caylee having just 1 number only. This is because brothers and sisters are likely to share the same combination, and in any case where they have the same combination, the child would be more likely to show 1 number. That's why you read that you would see a large number of recessive genes.
Sorry to go on so long, but I did want to respond to show there is proof in your post it didn't happen. I am sure it was just a misunderstanding; this rumor though, I have to quelch it. Please, please don't think I am trying to be difficult. I can't tell you how many times I have misread or completely misunderstood here

I hope the response made sense too, LOL.
If I also have it wrong, someone jump on in and swim in the Anthony gene pool.... hey? where'd everybody go?....come back!! We have Kool-Aid!?
Oh, yes, keeping it in line with the thread. GA and LA I am sure are being "investigated", but not because of the results of this test. Just wanted to make that clear.