Paul Vl is a straw man argument. Who would even care if there was an imposter? If there were two of them they were both lousy heretics anyway. The physical differences in the pics aren't that convincing.
Sister Lucy Truth is a different story. The insertion of S.Lucy the imposter changes the course of history,Vll, the apostasy of the Church ( Including Paulo Vl and Vll?)and the Church's subversion of the greatest message from Heaven to mankind since the time of the Apostles. I find it hard to believe that you can't see that these are clearly two different people. It's like comparing Mary Tyler Moore and Bette Midler. Not the same person.