They should have used that institutes data for both. I'm saying he should have been adjudicated as correct, but was abut the same as Sanders, may slightly more hyperbolic, but not enough to dock him that much.

At the very least they should have made a reference to the study that Sander's team brought up and said why it didn't apply.

The biggest issue is that this isn't an isolated incident. That fact checker routinely errors on the Dem side. If this was one of many more balanced cases this would be different.