I'd read all the articles before I read this and didn't spot any that were poorly summarized, even though I personally would have added some different context to some of them.
This article has more info on what design decisions in VP8 are likely to have been impacted by patents:
I note that the original Dark Shikari article has been updated multiple times by the author (search for "update:"). The initial burst of updates where to add more damning evidence of On2/Google incompetence in not doing things the obviously better MPEG-approved way, but the later ones acknowledge that the decisions made more sense in light of patent issues he was unaware of, or of features of the VP8 encoder that he didn't fully understand.