This and other stories seem to assume that a BGP issue is the root cause. That may be, but there are other possibilities. Some other internal issues could hav

This and other stories seem to assume that a BGP issue is the root cause. That may be, but there are other possibilities. Some other internal issues could have broken many systems, including BGP. They could have had some sort of internal systems failure, and intentionally withdrew BGB to cut off the flood of connection attempts (making recovery easier). Many possibilities.