Another great point. The most important impact he had on the film is the transferring of information to the audience that Jyn was abandoned by him because people we’re starting to piece together who she really was. Other than that and the “Save The Rebellion…Save the dream” line he is completely useless just like Lor San Tekka in TFA.
Except Saw is made out to be a very important character in the film. Tekka is just an old ally with the map who sets thing in action at the start - no need to be anything more.