[Svartalfiar]

People charged with federal crimes on this were probably dealers

Possibly, but if you read the excerpt you'll notice the only crimes being pardoned are low-level possession/use ones, not anything for selling/transporting.

[Glad2bnuts]

If you had read through the responses, you would see that most possession charges were plead down from more serious offenses. Like trafficking, dealing and possession of large quantities. The Feds don’t prosecute people for having a gram of MJ. They prosecute people for having a couple of Keys, and trade less time in jail for turning on someone above their pay grade.