What do you mean "lightly?" He ran an illegal drug market and tried to assassinate a competitor. We gave him the punishment that society has determined one should receive for this. Revoking his punishment is "light."
Meanwhile a sizable campaign has materialized around this case and many people do feel he has done enough time and should be free without any restrictions
It's certainly not what pardons are for.
This could be said for any number of people rightfully detained by the US for crimes of incredible magnitude.
It’s not possible to make it not exist.