One other thought:  The purpose of the source links is to help people learn.  It in no way every implies that someone should hack private implementation details.   We have a number of modules that have both a pure python implementation and a replacement with a C accelerator (heapq, counter, bisect, decimal, etc) they are all done in the same way as the OrderedDict.

I believe this report should be re-closed as the OP has consistently adopted unreasonable positions as has been unwilling to accept the responses from the devs volunteering their time to explain the basics of private, non-guaranteed implementation details.