Could one damaged British ship finish Blucher while the others pursued?
Short answerYes. The proposed solution leaves the damaged flagship Lion with Blucher and sends the faster ships after the rest of the German force.
NotesLion's damage forced Beatty's flagship out of line. The signals sent as other ships passed failed to convey the intended continued pursuit. Leaving Lion to deal with Blucher would let the remaining British battlecruisers follow the rest of Hipper's force.