Original sentence: In his email to Koreanstudies mailing list, Mark Byington, when a postdoctorate at the Korea Institute, an autonomous non-departmental entity located at Harvard University, has suggested China's official position to be "flimsy," historically speaking, though notes it "accords with current practice in the PRC" in describing "a very vaguely defined greater Chinese nation of the remote past," and that their position is "one that must exist in order to fall into line with current Chinese views of the Chinese past"
Edited sentence: In his email, Mark Byington, when a postdoctorate at the Korea Institute, an autonomous non-departmental entity located at Harvard University, has suggested China's official position to be "flimsy," historically speaking, though notes it "accords with current practice in the PRC" in describing "a very vaguely defined greater Chinese nation of the remote past," and that their position is "one that must exist in order to fall into line with current Chinese views of the Chinese past"