The reason for the original formatting was made
explicitly clear by Dr. Robinson,
This petition was widely circulated and those attacking it have copies of the original and have never made any claim that the paper had a NAS heading.
They don't because that is not how the peer-review process works. Journals do not have reviewers on staff nor do they only use reviewers based on the title of the journal. Editors send papers out to reviewers who are experts in the field a paper's contents are on. In this case it would have been sent out to climate scientists for review. It is quite clear that you do not understand how the peer-review process works.