I've learned to expect nothing satisfying from this show, when it spends one of the last four episodes around a piano??

A thousand throats can be cut in one night by a running man.

I'm still confused. The Final Five: Were they simply human beings who figured out how to regenerate, and then went on the build the 7 skinjobs? If so, they are still really just human. But then Tigh makes a joke about his grandad being a power sander.