Yes, they are not the same thing. The point is that Pollard walked out of prison and lives today on support from the Israeli government when he should have remained in prison on a treason charge. Pollard successfully plea bargained away the treason charge.30 years is not the same as letting flynn walk
Moreover, Pollard was an apex criminal whereas Flynn even as National Security Advisor was an underling willing to testify against a higher up. Again, those circumstances are not the same.