"The bones and jade don't bear deviation marks such as drills, or chisel and burn traces, so the writing maybe for keeping records of events."
I wish them luck in their translations. More proof that the Chinese Civilization didn't suddenly spring to life with the Shang. Now that they are doing better work in China, the old assumptions are bound to change in unpredictable ways (evidenced by your list of articles and with this article).
Yeah, exactly, if the writing medium was mostly not of a material that would endure for long, the development of an ancient writing system can’t be documented now, and therefore appears to have come out of thin air.