I think thats because they don't know anything more atm. CenturyLink didn't do a postmortem yet so they can only guess and see what happend. What they suggest a

I think thats because they don't know anything more atm. CenturyLink didn't do a postmortem yet so they can only guess and see what happend. What they suggest all seems possible, but it will be guesswork until CenturyLink explains what happens (if that ever happens)