Would you mind telling on what you agree?
One thing is, that "Waiting to be Heard" and "Honor Bound" are first hand accounts of Amanda Knox and Raffaele Sollecito about what happened to them, so they are definitely worth a read or two. The second thing is that the court records and the Italian newspaper articles from that time are indeed corroberating these accounts. AFAIK there is only one factual error in "Waiting to be Heard".
Of course one can go ahead and find differences between them and between them and other accounts. This is because of the different POV's and because some of the other stories like the ones from Russell, Follain or Nadeau are, as we have seen in the case of "Darkness Descending", simply made up.
The other approach is "to find fault in everything", that was done with "Honor Bound" on TJMK and Liz Houle's "book" is just the latest example for that, pretty cheap, if you ask me.
Why should I? Fischer, Hendry and Waterbury didn't try to press the facts into a narrative, you can't blame them for not having "all" the information, and Waterbury did a good job in explaining how "DNA-testing" works. The Knox case was as far as I know just one part of Douglas' book. Preston/Spezi, Burleigh and Dempsey are in the "True Crime Narrative" group, together with Nadeau, Russell, Sarzanini, Castellini and Follain. I don't get your point here. If it isn't wrong to publish a pro-guilt narrative, why is it wrong to publish a pro-innocence narrative?
I think you missed my point. The problem I have with the lately published books by Van der Leek and Raper is that they are "reporting" about the case as if it was still 2009 and the information that wasn't available then (but is now) doesn't exist. Hodges' book is another attempt in trying to make Knox say things she doesn't say (also has a long tradition on TJMK so nothing really new here). For Houle's book: see above.
I've no idea why you mention Christopher Robinson in this regard?
And just for the record: the linguistic discussion club meetings are down the hall, third door on the left