Hi Stu,
Since the Mayflower Project's scope really only extends to children born by the year 1700, Abigail's relationship, and even the purported mother, are beyond its range. It probably would be best to ensure that solid sources and obvious == disputed == sections (up top) are kept on all the profiles involved.
If you continue to have trouble with them being reattached, you could request that the Connecticut Project provide protection.